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Study sets matching "chemistry chapter 1 atomic structure"

39 terms
General Chemistry Chapter 1: Atomic Structure
Atomic Number
Mass number (A)
Isotopes
Electrons in higher shells have higher…
Equal to the number of protons found in an atom of that eleme…
The sum of the protons and neutrons in the atom's nucleus. Al…
Atoms that share an atomic number but have different mass num…
Higher because they are unlike charges (proton and electron).…
Atomic Number
Equal to the number of protons found in an atom of that eleme…
Mass number (A)
The sum of the protons and neutrons in the atom's nucleus. Al…
34 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
40 terms
Chemistry |Chapter 1 | Atomic Structure
Proton Location, charge, mass
Atomic Number
Neutrons
Mass number
L = Nucleus... q = 1.6 x 10^-19 C = +1e, +1... m = 1 amu (atomic ma…
- Denoted as "Z"... - Number of protons in a molecule
L = Nucleus... q = 0... m = Little more than 1 amu (atomic mass uni…
- Denoted as "A"... - Sum of protons and neutrons
Proton Location, charge, mass
L = Nucleus... q = 1.6 x 10^-19 C = +1e, +1... m = 1 amu (atomic ma…
Atomic Number
- Denoted as "Z"... - Number of protons in a molecule
Chemistry - Chapter 1 - Atomic Structure
Where are the following located?... a) Pr…
Atomic Mass
Isotopes
Atomic Weight
a) Nucleus... b) Nucleus... c) Around the nucleus
Sum of protons and neutrons.
Atoms of the same element that have different mass numbers.
Average mass of the naturally occurring isotopes.
Where are the following located?... a) Pr…
a) Nucleus... b) Nucleus... c) Around the nucleus
Atomic Mass
Sum of protons and neutrons.
42 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
34 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
72 terms
General Chemistry MCAT- Chapter 1: Atomic Structure
What are the three subatomic particles?
Protons
Neutrons
A & Z on element symbol
1) Proton... 2) Neutron... 3) Electron
Where: nucleus... Charge: 1.6x10^-19 C or +1e... Mass = 1 amu (atom…
Where: nucleus... Charge: neutral... Additional neurons = isotopes…
What are the three subatomic particles?
1) Proton... 2) Neutron... 3) Electron
Protons
Where: nucleus... Charge: 1.6x10^-19 C or +1e... Mass = 1 amu (atom…
35 terms
MCAT General Chemistry Chapter 1: Atomic Structure
Atomic number
Mass number
Isotopes
three isotopes of hydrogen
number of protons in element
number of protons plus neutrons in element (atomic mass)
Differ in number of neutrons. Different mass number, same ato…
protium, deuterium, tritium
Atomic number
number of protons in element
Mass number
number of protons plus neutrons in element (atomic mass)
65 terms
General Chemistry MCAT- Chapter 1: Atomic Structure
What are the three subatomic particles?
Protons
Neutrons
Electrons
1) Proton... 2) Neutron... 3) Electron
Where: nucleus... Charge: 1.6x10^19 or +1e... Mass = 1 amu... # of pro…
Where: nucleus... Charge: neutral... Additional neurons = isotopes
Where: space around nucleus... Charge: -1.6x10^19 or -1e
What are the three subatomic particles?
1) Proton... 2) Neutron... 3) Electron
Protons
Where: nucleus... Charge: 1.6x10^19 or +1e... Mass = 1 amu... # of pro…
23 terms
General Chemistry MCAT - Chapter 1 - Atomic Structure
Nucleus
Atomic Number (Z)
Mass Number (A)
Atomic Weight
Contains the protons and neutrons
Equal number of protons
Sum of protons and neutrons
Weighted Average if the naturally occurring isotopes of an el…
Nucleus
Contains the protons and neutrons
Atomic Number (Z)
Equal number of protons
31 terms
Chemistry - Chapter 1: Atomic Structure
Subatomic Particles...
Proton
Neutron
Electron
...
-Has a positive charge and a mass around 1 amu
-Has no net charge and a mass around 1 amu
-Has a negative charge and negligible mass
Subatomic Particles...
...
Proton
-Has a positive charge and a mass around 1 amu
16 terms
General Chemistry Chapter 1: Atomic Structure
Bohr Model
Atomic mass vs. Atomic weight
Quantum
Principle quantum number, n
Dense, positively charged nucleus at the center surrounded by…
Mass: equal to the mass number, sum of protons and neutrons…
Planck. Differences in energy levels
n: describes the average energy of a shell
Bohr Model
Dense, positively charged nucleus at the center surrounded by…
Atomic mass vs. Atomic weight
Mass: equal to the mass number, sum of protons and neutrons…
34 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
34 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
34 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
33 terms
MCAT Chemistry: Chapter 1 (Atomic Structure)
Amu
Mass Number
Valence Electrons
Atomic Mass
-atomic mass unit ... -1 gram
sum of the protons and neutrons in the atom's nucleus
-Those in the outermost energy level/shell... -experience the le…
equal to the mass number of the atom
Amu
-atomic mass unit ... -1 gram
Mass Number
sum of the protons and neutrons in the atom's nucleus
37 terms
MCAT General Chemistry Chapter 1 - Atomic Structure
Protons
Atomic Number
Atomic Mass Unit (amu)
Neutrons
+1; 1.6 x 10 ⁻¹⁹ C
Numbers of protons in an element
Protons have a mass of one amu
(no charge) ... Slightly larger than a proton; With protons, the…
Protons
+1; 1.6 x 10 ⁻¹⁹ C
Atomic Number
Numbers of protons in an element
25 terms
MCAT General Chemistry Chapter 1 - Atomic Structure
Protons
Atomic Number
Atomic Mass Unit (amu)
Neutrons
+1; 1.6 x 10 ⁻¹⁹ C
Numbers of protons in an element
Protons have a mass of one amu
Slightly larger than a proton; With protons, they make up alm…
Protons
+1; 1.6 x 10 ⁻¹⁹ C
Atomic Number
Numbers of protons in an element
55 terms
MCAT Kaplan Chemistry: Chapter 1 Atomic Structure
what is the charge in Coulombs of a pr…
what is the mass of a proton in amu
atomic number
mass number
1.6*10^-19 C
1 amu
represented by Z, equal to number of protons in the atom of t…
represented by A, sum of protons and neutrons in the atom's n…
what is the charge in Coulombs of a pr…
1.6*10^-19 C
what is the mass of a proton in amu
1 amu
35 terms
Chapter 1 - General Chemistry - Atomic Structure
1 amu = 1.66 x 10^(-24) grams
atomic number (Z)
mass number (A)
isotopes
The mass of one proton.
The number of protons found in an atom of a particular elemen…
The sum of the protons and the neutrons in a given atom's nuc…
Atoms that share an atomic number but have different mass num…
1 amu = 1.66 x 10^(-24) grams
The mass of one proton.
atomic number (Z)
The number of protons found in an atom of a particular elemen…
24 terms
General Chemistry Chapter 1: Atomic Structure
6.02 x 10^23
E = hf
6.626 x 10^-34 Js
L = nh / 2π
Avogadro's number
Energy of a quantum
Planck's constant
angular momentum of an electron
6.02 x 10^23
Avogadro's number
E = hf
Energy of a quantum
41 terms
General Chemistry Chapter 1: Atomic Structure
atomic number (Z)
mass number (A)
atomic mass
atomic weight
Z = # of protons (also # electrons in a NEUTRAL atom)... - the n…
A = protons + neutrons... - not on periodic table ; # at the top…
essentially the same as mass number... - NOT ON PERIODIC TABLE!
average mass of all the isotopes of a certain type... - the numb…
atomic number (Z)
Z = # of protons (also # electrons in a NEUTRAL atom)... - the n…
mass number (A)
A = protons + neutrons... - not on periodic table ; # at the top…
26 terms
General Chemistry - Chapter 1 (Atomic Structure)
atomic mass
atomic weight
Rutherford
Bohr model of the atom
essentially equal to the mass number, the sum of an element's…
the weighted average of the naturally occurring isotopes of a…
first postulated that the atom had a dense, positively charge…
a dense, positively charged nucleus is surrounded by electron…
atomic mass
essentially equal to the mass number, the sum of an element's…
atomic weight
the weighted average of the naturally occurring isotopes of a…
44 terms
MCAT General Chemistry Chapter 1- Atomic Structure
Proton
Neutron
Electron
Nucleus
has a positive charge and mass around 1 amu
no charge and mass around 1 amu
a negative charge and negligible mass
contains the protons and neutrons, while the electrons move a…
Proton
has a positive charge and mass around 1 amu
Neutron
no charge and mass around 1 amu
44 terms
MCAT General Chemistry Chapter 1- Atomic Structure
Proton
Neutron
Electron
Nucleus
has a positive charge and mass around 1 AMU
no charge and mass around 1 AMU
a negative charge and negligible mass
contains the protons and neutrons, while the electrons move a…
Proton
has a positive charge and mass around 1 AMU
Neutron
no charge and mass around 1 AMU
10 terms
A level chemistry chapter 1 - Atomic structure
Isotopes
6 stages of mass spectrometry
Mass number
Atomic number
Aromss with the same number of protons but a different number…
1) vacuum 2) ionisation 3) acceleration 4) ion drift 5) detec…
Total number of protons and neutrons in the nucleus
Number of protons in the nucleus
Isotopes
Aromss with the same number of protons but a different number…
6 stages of mass spectrometry
1) vacuum 2) ionisation 3) acceleration 4) ion drift 5) detec…
9 terms
General Chemistry Chapter 1: Atomic Structure
the atomic number is equal to the numb…
the mass number is equal to the number…
isotopes differ in the number of _____…
a neutral atom has an equal number of…
protons
protons and neutrons
neutrons
protons and electrons
the atomic number is equal to the numb…
protons
the mass number is equal to the number…
protons and neutrons
13 terms
General Chemistry: Chapter 1 Atomic Structure
atomic number
1 amu (atomic mass unit)
mass number
isotopes
is the number of protons in a atom of an element
how much does 1 proton weigh?
is the sum of the protons and neutrons mass for an atom
atoms that share an atomic number but have different mass num…
atomic number
is the number of protons in a atom of an element
1 amu (atomic mass unit)
how much does 1 proton weigh?
64 terms
General Chemistry Chapter 1: Atomic Structure
Atomic mass unit (amu)
Fundamental unit of charge (e)
Avogadro's number
Protons charge and mass
1.66 x 10⁻²⁴g = 1/12 mass of C-12. Approximately the mass of…
1.6 x 10⁻¹⁹C. Charge of 1 proton. Negative is charge of 1 ele…
6.02 x 10²³/mol. Number of things in a mole. The number of pa…
Charge: +1, +1e, 1.6 x 10⁻¹⁹C.... Mass: 1 amu, 1.66 x 10⁻²⁴g
Atomic mass unit (amu)
1.66 x 10⁻²⁴g = 1/12 mass of C-12. Approximately the mass of…
Fundamental unit of charge (e)
1.6 x 10⁻¹⁹C. Charge of 1 proton. Negative is charge of 1 ele…
31 terms
MCAT: General Chemistry Chapter 1: Atomic Structure
What is the atomic number equal to?... Wh…
What is the atomic mass equal to?
Whats are isotopes?
Which electrons have the greatest ener…
The number of protons in the nucleus.... Over the letter of the…
The sum of protons + neutrons
Atoms that share an atomic number, but have different mass nu…
The electrons farthest from the nucleus have the greatest ene…
What is the atomic number equal to?... Wh…
The number of protons in the nucleus.... Over the letter of the…
What is the atomic mass equal to?
The sum of protons + neutrons
15 terms
Willhelm Chemistry Chapter 1 Atomic Structure
Democritus
Aristotle
John Dalton
Dalton's Atomic Theory
proposed that all matter is composed of indivisible particles
He disputed Democritus' theories and won wide acceptance. was…
Developed the first formal atomic theory
• Atoms of the same element are Identical... • Atoms of differen…
Democritus
proposed that all matter is composed of indivisible particles
Aristotle
He disputed Democritus' theories and won wide acceptance. was…
10 terms
Chemistry Chapter 1 - Midterm ATOMIC STRUCTURE
Matter
Dalton's Atomic Theory
Basic Dalton's Atomic Theory
J.J. Thomson
All mater is made up of tiny particles
John Dalton was a British chemist who first coined the term a…
The atom was a hard, solid sphere. Refers to the CANNONBALL M…
Used a cathode ray tubes to show that one of these smaller pa…
Matter
All mater is made up of tiny particles
Dalton's Atomic Theory
John Dalton was a British chemist who first coined the term a…
MCAT GENERAL CHEMISTRY Chapter 1 Atomic Structure
Avogadro's Number
The Energy of a Quantum/ Planck Relation
Planck's Constant (h)
Angular Momentum
6.02 x10^23
E=hf
6.626x10^-34
L=mvr
Avogadro's Number
6.02 x10^23
The Energy of a Quantum/ Planck Relation
E=hf
44 terms
MCAT General Chemistry Chapter 1- Atomic Structure
Proton
Neutron
Electron
Nucleus
has a positive charge and mass around 1 amu
no charge and mass around 1 amu
a negative charge and negligible mass
contains the protons and neutrons, while the electrons move a…
Proton
has a positive charge and mass around 1 amu
Neutron
no charge and mass around 1 amu
44 terms
MCAT General Chemistry Chapter 1- Atomic Structure
Proton
Neutron
Electron
Nucleus
has a positive charge and mass around 1 amu
no charge and mass around 1 amu
a negative charge and negligible mass
contains the protons and neutrons, while the electrons move a…
Proton
has a positive charge and mass around 1 amu
Neutron
no charge and mass around 1 amu
35 terms
Chapter 1 Atomic Structure ( MCAT Chemistry)
The ------( ---) of an element is equa…
The ----(---) is the sum of protons an…
------ are atoms that share an atomic…
What is the value of avagadro's number?
atomic number (Z)
mass number (A), atomic mass
isotopes
6.02*10^23
The ------( ---) of an element is equa…
atomic number (Z)
The ----(---) is the sum of protons an…
mass number (A), atomic mass
16 terms
Chemistry Chapter 1 Atomic Structure and Bonding
chemical bond
chemical formula
covalent bond
ionic bond
force that holds two atoms together
combination of chemical symbols and numbers that indicates wh…
chemical bond formed when atoms share electrons
attraction that holds oppositely charged ions close together
chemical bond
force that holds two atoms together
chemical formula
combination of chemical symbols and numbers that indicates wh…
GENERAL CHEMISTRY CHAPTER 1 - Atomic Structure
Atomic Number
Mass Number
True or False: The atomic mass is esse…
What do isotopes differ in compared to…
the number of protons in a given element
the sum of an element's protons and neutrons
True
Neutrons resulting in a different mass number
Atomic Number
the number of protons in a given element
Mass Number
the sum of an element's protons and neutrons
30 terms
Collins AQA Chemistry Chapter 1: Atomic structure and the periodic table
element
compound
molecule
formula
A substance that is made up of only one type of atom and cann…
A substance that is made of at least two different elements c…
Two or more atoms bonded together by covalent bonds.
The chemical description of a substance using symbols from th…
element
A substance that is made up of only one type of atom and cann…
compound
A substance that is made of at least two different elements c…
45 terms
Chapter 1: Atomic Structure
Planck's relation (frequency)
planck's constant
Angular momentum of an electron (Bohr…
energy of the electron (Bohr model)
Energy of a quantum
L = nh/2π
-RH/n^2... energy of an electron increases (becomes less negati…
Planck's relation (frequency)
Energy of a quantum
planck's constant
46 terms
Chapter 1: Atomic Structure
Proton
Neutrons
Atomic Number
Mass Number/Atomic Mass
+1 charge... In Nucleus... Mass of 1 atomic mass unit (amu)
no charge... in nucleus... larger mass than a proton (relative=1amu)
(Z)... equal to number of protons found in an atom of that eleme…
(A)... Sum of protons and neutrons in atom's nucleus... Mass of sin…
Proton
+1 charge... In Nucleus... Mass of 1 atomic mass unit (amu)
Neutrons
no charge... in nucleus... larger mass than a proton (relative=1amu)
41 terms
MCAT: General chemistry Chapter 1: Atomic structure
what are three subatomic particles?
where are protons found?
what is the charge of the proton?
true or false, the atomic number is th…
- substance, atom, nucleus
in the nucleus, along with neutrons
+1
true
what are three subatomic particles?
- substance, atom, nucleus
where are protons found?
in the nucleus, along with neutrons
9 terms
Chemistry 11: Chapter 1.2 - Atomic Structure
When was the period of alchemy?
What was Dalton's atomic theory?
What was Thomson's atomic theory?
What was Rutherford's atomic theory?
1st century CE to 17th century
Solid spheres like billiard balls. All matter is made up of t…
Electron introduced, negatively charged particle. Plum puddin…
Each atom had a small, dense, positively charged nucleus. Pro…
When was the period of alchemy?
1st century CE to 17th century
What was Dalton's atomic theory?
Solid spheres like billiard balls. All matter is made up of t…
18 terms
Chapter 1: AS Chem atomic structure
Ionisation
Deflection
Acceleration
Detection
The process of removing an electron from an atom. In a mass s…
The third stage of the Mass spectrometer. Accelerated positiv…
Negatively charged plates are used to attract the ions, speed…
The positive ions hit the detector causing a current to flow.…
Ionisation
The process of removing an electron from an atom. In a mass s…
Deflection
The third stage of the Mass spectrometer. Accelerated positiv…
15 terms
Chemistry Atoms and Atomic Structure
Atom
Subatomic Particles
Proton
Atomic Number
The smallest unit of matter in any element that keeps it's id…
1. Particles that are smaller than the atom. 2. Usually refer…
1. A positively (+) charged subatomic particle located in the…
A unique number for each element on the periodic table that i…
Atom
The smallest unit of matter in any element that keeps it's id…
Subatomic Particles
1. Particles that are smaller than the atom. 2. Usually refer…
25 terms
Chapter 1 Atomic Structure
Lower energy electrons
Avagadros #
Weighted Average
Planck Relation... Plancks Constant
closer orbitals
6.02E23
%(amu1)+%(amu2)...
E=hf... h=6.6.26E-34 J*s... f=frequency
Lower energy electrons
closer orbitals
Avagadros #
6.02E23
27 terms
Chapter 1: Atomic Structure
proton
neutron
electron
nucleus
has a positive charge and a mass of 1amu
has no charge and a mass of 1amu
has a negative charge and a mass that is negligible
contains the protons and neutrons while the electrons move ar…
proton
has a positive charge and a mass of 1amu
neutron
has no charge and a mass of 1amu
27 terms
Chapter 1 -- Atomic Structure
Proton
Neutrons
Electrons
Valence Electrons
Determine the Atomic Number (Z)
-Mass Number (A) = neutrons + protons... -Isotopes differ in mas…
-Because their mass is so small, they do not affect mass... -Ele…
Have weakest interaction with the nucleus so are more likely…
Proton
Determine the Atomic Number (Z)
Neutrons
-Mass Number (A) = neutrons + protons... -Isotopes differ in mas…
15 terms
Glencoe Science Chemistry Chapter 1 Atomic Structure and Chemical Bonds
Atom
Electron
Electron Cloud
Energy Levels
The smallest part of an element that keeps the properties of…
Negatively charged particle that moves in a cloud around the…
Area where electrons, arranged in energy levels, travel aroun…
The different positions for electron in the electron cloud
Atom
The smallest part of an element that keeps the properties of…
Electron
Negatively charged particle that moves in a cloud around the…
51 terms
CHEMISTRY 11: UNIT 1, CHAPTER 1, Atomic Structure and the Periodic Table
matter
empirical knowledge
theoretical knowledge
theory
anything that has mass and takes up space
knowledge that comes from investigation and observation
knowledge that explains scientific observations
an explanation or model based on observation, experimentation…
matter
anything that has mass and takes up space
empirical knowledge
knowledge that comes from investigation and observation
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