How can we help?

You can also find more resources in our Help Center.

Study sets matching "isotopes chem"

Study sets
Classes
Users

Study sets matching "isotopes chem"

9 terms
Chemistry isotopes
number of protons in an atom
identifies an element
they are listed in increasing atomic n…
number of electrons
atomic number
atomic number
How are the atomic numbers listed
The atomic number is equal to what
number of protons in an atom
atomic number
identifies an element
atomic number
67 terms
Chemistry isotopes
H
He
Li
Be
Hydrogen
Helium
Lithium
Beryllium
H
Hydrogen
He
Helium
15 terms
chemistry isotopes
dmitri mendeelev
periodic table
henry mosley
representative elements
organized elements in columns in order of increasing atomic m…
a chart that organizes known elements into a grid of horizont…
arranged the periodic table by atomic number
the elements group 1, 2, and 13 to 18 possess a wide range of…
dmitri mendeelev
organized elements in columns in order of increasing atomic m…
periodic table
a chart that organizes known elements into a grid of horizont…
20 terms
Chemistry isotopes
Ag+
Cu+
Zn 2+
Cd2+
Silver
Copper(1)
Zinc
Cadmium
Ag+
Silver
Cu+
Copper(1)
8 terms
Chemistry (isotopes)
(%1)(xm1)+(%2)(xm2)
atomic number
atomic mass
same as atomic number/protons
average atomic mass
Z
A
how to get electrons
(%1)(xm1)+(%2)(xm2)
average atomic mass
atomic number
Z
17 terms
Chemistry isotopes
Number of protons in an atom
the atomic number identifies an element
they are listed in increasing atomic n…
the atomic number is equal to the numb…
atomic number
what does the atomic number do
How are the atomic numbers listed
The atomic number is equal to what in an atom
Number of protons in an atom
atomic number
the atomic number identifies an element
what does the atomic number do
14 terms
Chemistry (Isotopes)
Isotopes
Isotopes are ;
Isotopes have ;
Isotopes are chemically alike because ;
-sam number of protons... -same number of electrons... -different n…
atoms that have the same number of protons but different numb…
same atomic number, but different mass numbers
they have identical numbers of protons and electrons, which a…
Isotopes
-sam number of protons... -same number of electrons... -different n…
Isotopes are ;
atoms that have the same number of protons but different numb…
15 terms
Chemistry - Isotopes
What is an isotope?
What does the number next to the isoto…
How can you tell isotopes apart?
How do isotopes compare in terms of at…
Atoms of the same element with the same number of protons, bu…
The atomic mass.
By their neutrons and atomic mass.
Both elements will have the same number of protons.
What is an isotope?
Atoms of the same element with the same number of protons, bu…
What does the number next to the isoto…
The atomic mass.
15 terms
Chemistry Isotopes
Ammonium
Acetate
Chlorate
Hydrogen Carbonate (Bicarbonate)
NH4^1+
C2H3O2^1-
ClO3^1-
HCO3^1-
Ammonium
NH4^1+
Acetate
C2H3O2^1-
10 terms
Chemistry- Isotopes
Energy Levels
Quantum
Quantum mechanical model
Atomic orbital
The fixed energies an electron can have
Is the amount of energy required to move an electron from one…
Determines the allowed energies an electron can have and how…
A region of space in which there is a high probability of fin…
Energy Levels
The fixed energies an electron can have
Quantum
Is the amount of energy required to move an electron from one…
18 terms
Chemistry Isotopes!
Acetate
Ammonium
Carbonate
Cyanide
C2H3O2(-)
NH4(+)
CO3(2-)
CN(-)
Acetate
C2H3O2(-)
Ammonium
NH4(+)
7 terms
Chemistry Isotopes
Ion
cation
anion
Isotope
atom with positive or negative charge
positive charged ion
negative charged ion
an element with the same number of protons, but different num…
Ion
atom with positive or negative charge
cation
positive charged ion
20 terms
Chemistry isotopes
isotopes
atomic number
mass number
atomic mass number
atoms of the same element with different numbers of neutrons
number of protons and number of electrons
number of protons + number of neutrons
average, rounds to most abundant
isotopes
atoms of the same element with different numbers of neutrons
atomic number
number of protons and number of electrons
23 terms
Chemistry Isotopes
PO3 Phosphite
PO4 Phosphate
C2O4 Oxalate
CO3 Carbonate
3-
3-
2-
2-
PO3 Phosphite
3-
PO4 Phosphate
3-
11 terms
Chemistry Isotopes
H+
Li+
Na+
K+
Hydrogen Ion
Lithium Ion
Sodium Ion
Potassium Ion
H+
Hydrogen Ion
Li+
Lithium Ion
5 terms
Chemistry Isotopes
Who discovered the electron?
What experiment was used to discover t…
What experiment was used to discover t…
Who discovered the neutron?
Thompson
gold foil experiment
cathode ray experiment
Chadwick
Who discovered the electron?
Thompson
What experiment was used to discover t…
gold foil experiment
8 terms
Isotopes - Chemistry
What is an isotope?
What is relative atomic mass?
How do you figure out the relative ato…
What is relative formula mass?
Isotopes are: different atomic forms of the same element, whi…
It's the average mass of all the isotopes of an element (mass…
One) multiply the mass of each isotope by its relative abunda…
It is the sum of all the relative atomic masses (Mass numbers)
What is an isotope?
Isotopes are: different atomic forms of the same element, whi…
What is relative atomic mass?
It's the average mass of all the isotopes of an element (mass…
14 terms
isotopes - chemistry
how to find the charge of an atom?
protons tell you what?
in hyphen notation, what number do you…
the atomic number is what of the eleme…
electrons minus protons
atomic number
the mass number
dna
how to find the charge of an atom?
electrons minus protons
protons tell you what?
atomic number
8 terms
Chemistry: Isotopes and Relative isotopic mass
define the term relative isotopic mass?
one 'u' is appropriately relative to t…
why doesn't relative isotopic mas shav…
What are isotopes?
the mass of an isotope relative to 1/12 the mass of a carbon…
a proton or neutron
as it's a ratio of two separate masses
atoms of the same element with a different number of neutrons…
define the term relative isotopic mass?
the mass of an isotope relative to 1/12 the mass of a carbon…
one 'u' is appropriately relative to t…
a proton or neutron
9 terms
Chemistry: Isotope
The number of protons in the nucleus o…
In a neutral atom the number of what e…
The total number of protons and neutro…
What are the equations to find the mas…
The atomic number
the number of protons = the number of electrons
The mass number
#neutrons + #protons = mass #... #neutrons + atomic # = mass #... #…
The number of protons in the nucleus o…
The atomic number
In a neutral atom the number of what e…
the number of protons = the number of electrons
18 terms
Chemistry Isotopes Quiz
what is atomic number
what determines what the element is
if the number of protons (atomic numbe…
mass of a proton
number of protons
number of protons/ atomic number
the element is different
one amu
what is atomic number
number of protons
what determines what the element is
number of protons/ atomic number
8 terms
Chemistry Quiz- Atom and Isotopes
Timeline of the Atom
Atomic Number
isotopes?
shorthand version of isotope
1. Democritus first created idea that all matter was made of…
number of protons (defines element)
Atoms of the same element that differ in mass due to differen…
Timeline of the Atom
1. Democritus first created idea that all matter was made of…
Atomic Number
number of protons (defines element)
40 terms
Atoms and Isotopes Chemistry Review
what 1st the first theory of an atom a…
what was the 2nd theory of an atom and…
How did J.J. Thomson set up his experi…
what was the result of J.J. Thomson's…
John Dalton created the 1st theory (1808) and viewed atoms as…
J. J. Thomson created the 2nd theory (1897) seeing atoms as s…
He passed a current through a gas enclosed by electrodes
it produced at cathode ray
what 1st the first theory of an atom a…
John Dalton created the 1st theory (1808) and viewed atoms as…
what was the 2nd theory of an atom and…
J. J. Thomson created the 2nd theory (1897) seeing atoms as s…
15 terms
Chemistry - Atomic structure and isotopes
isotopes
chemical properties of all isotopes ar…
relative isotopic mass (IR)
relative atomic mass (AR)
atoms of the same element with different numbers of neutrons…
all isotopes of an element have the same atomic number and he…
the mass of an atom of an isotope relative to 1/12th the mass…
weighted mean mass of all the isotopes of an element relative…
isotopes
atoms of the same element with different numbers of neutrons…
chemical properties of all isotopes ar…
all isotopes of an element have the same atomic number and he…
20 terms
Chemistry: Models, Ions, and Isotopes
Who was the first to suggest the exist…
What did Democritus believe atoms were?
1. All elements are composed of atoms…
Dalton's Model
Democritus
Indivisible and indestructible
Dalton's Atomic Theory
Solid sphere
Who was the first to suggest the exist…
Democritus
What did Democritus believe atoms were?
Indivisible and indestructible
9 terms
Isotopes Chemistry test
Isotope name
Nuclear symbol
Atomic number
Mass number
Element - mass number
from periodic table, same as # of protons
# of protons + # of neutrons
Isotope name
Element - mass number
Nuclear symbol
9 terms
Chemistry: Isotopes and chemical reactions
what do chemical reactions involve?
what effect does the number of neutron…
why might an isotope of the same eleme…
give an example of an element and its…
electrons surrounding the nucleus
NONE. Therefore different isotopes of the same element chemic…
may have a higher mass, due to increased number of neutrons.…
H20; isotope D20 or heavy water as 2H1 isotope
what do chemical reactions involve?
electrons surrounding the nucleus
what effect does the number of neutron…
NONE. Therefore different isotopes of the same element chemic…
12 terms
Chemistry Final review- Ions and isotopes
Defines the element and is determined…
How do you get the number of neutrons?
Represents the number of protons and e…
The number of protons equals the numbe…
Atomic number
Mass number subtracted by atomic number
Mass number
electrons and the atomic number
Defines the element and is determined…
Atomic number
How do you get the number of neutrons?
Mass number subtracted by atomic number
20 terms
Isotopes Quiz Chemistry
What does the atomic number show?
atomic mass
Who discovered the neutron?
What did Bohr believe?
number of protons and electrons in the nucleus(same amount of…
mass of the protons and neutron in the nucleus
Chadwick
that electrons move in specific layers or shells
What does the atomic number show?
number of protons and electrons in the nucleus(same amount of…
atomic mass
mass of the protons and neutron in the nucleus
13 terms
Chemistry: Atoms, Ions, & Isotopes
Democritus
Atomos
Dalton
Dalton
came up with concept of the Atom
the word atom comes from the greek word ________
developed the Billiard Ball model
Father of Atomic theory
Democritus
came up with concept of the Atom
Atomos
the word atom comes from the greek word ________
11 terms
Isotopes* Chemistry Exam 1
Chemical Reaction
Law of Conservation of Mass
Atom
Nucleus
A transformation of a substance into one or more new substanc…
Mass is neither created nor destroyed in reaction.
Smallest particle of an element that retains the properties.
Center of atoms that contain protons and neutrons. Held toget…
Chemical Reaction
A transformation of a substance into one or more new substanc…
Law of Conservation of Mass
Mass is neither created nor destroyed in reaction.
32 terms
Chemistry test set isotopes
Greeks believed all matter was made of…
believed that the world was made up of…
first scientist to perform experiments…
Englishman that discovered hydrogen, o…
air, fire, water, and earth
Democritus
Boyle
Cavendish
Greeks believed all matter was made of…
air, fire, water, and earth
believed that the world was made up of…
Democritus
12 terms
Chemistry Midterm (Isotopes)
isotope
atomic mass
atomic number
hyphen notation
atoms of the same element that differ in the number of neutrons
weighted average of the atomic masses of the naturally occurr…
number of protons in an atom of a given element, atoms of the…
Uranium-235
isotope
atoms of the same element that differ in the number of neutrons
atomic mass
weighted average of the atomic masses of the naturally occurr…
10 terms
Chemistry-atoms and isotopes
isotope
abundant isotope
ions
ionic bond
-contain the same number of protons and electrons but differe…
-the whole number mass shown on the periodic table
-charged particles... -all about electrons, they make it negativ…
-2 opposite charged atoms attract and bond together
isotope
-contain the same number of protons and electrons but differe…
abundant isotope
-the whole number mass shown on the periodic table
32 terms
Chemistry hylden isotopes
Isotope
Atomic number
Mass number
Metals
Atoms that have the same number of protons but a different nu…
Number of protons (Z)... Determines the identity of an element
Number of protons and neutrons (A)... Protons and neutrons contr…
-Good conductors... -malleable and ductile... -lustrous appearance…
Isotope
Atoms that have the same number of protons but a different nu…
Atomic number
Number of protons (Z)... Determines the identity of an element
29 terms
AP Chemistry- Polyatomic Isotopes
Hg2(2+)
NH4+
H2PO4-
C2H3O2-/CH3COO-
Mercury/Mercurous
Ammonium
Dihydrogen Phosphate
Ethanoate/Acetate
Hg2(2+)
Mercury/Mercurous
NH4+
Ammonium
9 terms
Chemistry vocab ions and isotopes
Chemical symbol
Nucleus
Electrons
Protons
Which is an abbreviated way to write the name of an element.
Is the center of a cell.
Surrounded by negatively charged particles.
A major particle in the nucleus.
Chemical symbol
Which is an abbreviated way to write the name of an element.
Nucleus
Is the center of a cell.
8 terms
Chemistry- Atomic Structure & Isotopes
Isotopes
Mass (nucleon) Number
Atomic (proton) Number
Relative Atomic Mass
Atoms of the same element with a different number if neutrons…
Number of protons and neutrons in the nucleus of an atom
Number of protons in the nucleus of an atom
The weighted mean mass of an atom of an element when compared…
Isotopes
Atoms of the same element with a different number if neutrons…
Mass (nucleon) Number
Number of protons and neutrons in the nucleus of an atom
24 terms
chemistry isotopes and atoms
proton
electron
neutron
democritus
-has mass... -positive... -inside nucleus
-no mass... -negative... -outside nucleus
-has mass... -neutral charge... -inside nucleus
matter is made up of small indivisible particles that is call…
proton
-has mass... -positive... -inside nucleus
electron
-no mass... -negative... -outside nucleus
17 terms
Chemistry Subatomic Particles & Isotopes
nucleus
mass of proton
mass of neutron
mass of electron
core of the atom, contains mass and charge of the atom
1 amu
1 amu
virtually 0 amu
nucleus
core of the atom, contains mass and charge of the atom
mass of proton
1 amu
47 terms
Chemistry isotopes and such
CO
CH3COOH
F(-)
H2O
carbon monoxide
acetic acid
fluoride
water
CO
carbon monoxide
CH3COOH
acetic acid
7 terms
Chemistry-Isotopes and Ions
Isotopes
Ions
How do you find Charge?
Cations
atoms of the same element with different numbers of neutrons,…
an atom that has gained or lost electrons, giving it a charge
#protons - #electrons
positively charged ions
Isotopes
atoms of the same element with different numbers of neutrons,…
Ions
an atom that has gained or lost electrons, giving it a charge
21 terms
chemistry history &a isotopes
Democritus
Lavoisier
Dalton
Thomson
Founded atomos- fundamental particle
Law of conservation of mass(mass cannot be either destroyed n…
First atomic theory
Charge of electron; discovery of electron
Democritus
Founded atomos- fundamental particle
Lavoisier
Law of conservation of mass(mass cannot be either destroyed n…
13 terms
Chemistry Isotopes and History quiz
Democritus
Aristotle
Antoine Lavoisier
Dalton
Everything is made up of atoms and empty space
Earth... Fire... Water... Air
Way way way more than 4 elements... law of conservation of mass…
Atomic theory... atoms are indivisible and indestructible... all…
Democritus
Everything is made up of atoms and empty space
Aristotle
Earth... Fire... Water... Air
13 terms
Chemistry- Isotopes and RAM
What does RAM stand for
Where do we find the numerical values…
Why aren't RAMs whole numbers?
The RAM symbol
Relative Atomic Mass
Periodic Table
Every element has a range of different isotopes. Therefore, a…
A^r
What does RAM stand for
Relative Atomic Mass
Where do we find the numerical values…
Periodic Table
23 terms
chemistry atoms isotopes
Isotopes
Gamma
Beta
alpha
must have the same number of protons and different numbers of…
ray... to many protons... positron emission... 0... e... +1
electron partical... too many neutrons... 0... e... -1
too big... he- nucleus... 4... He... 2
Isotopes
must have the same number of protons and different numbers of…
Gamma
ray... to many protons... positron emission... 0... e... +1
13 terms
chemistry 1 - isotopes
isotopes
radioisotopes
methods of separation for isotopes
half-life
they are variations of the same atom but with a different num…
isotopes that are radioactive, they break down releasing radi…
melting point, boiling point, mass, density, rate of diffusio…
the time it takes for half of the atoms to decay
isotopes
they are variations of the same atom but with a different num…
radioisotopes
isotopes that are radioactive, they break down releasing radi…
10 terms
chemistry - ions and isotopes
ionization energy
do noble gases have a high or low ioni…
when magnesium forms an ion...
mosely's periodic table is a refinemen…
energy required to lose an electron
very low
the ion is smaller in radius than the atom
arrangement by atomic number is most consistent
ionization energy
energy required to lose an electron
do noble gases have a high or low ioni…
very low
44 terms
Chemistry: Atoms, Ions, & Isotopes
What was Democritus's theory?
What led to Democritus's theory?
What was John Dalton's theory?
What led to John Dalton's theory?
All atoms are the same makeup, and they are invisible/ indivi…
Thought
All atoms are invisible/indivisible, atoms of the same elemen…
Research
What was Democritus's theory?
All atoms are the same makeup, and they are invisible/ indivi…
What led to Democritus's theory?
Thought
8 terms
Chemistry: Isotopes and important definitions
What are isotopes?
Why are isotopes identical in their ch…
Why do elements react?
What is an atom?
Isotopes are atoms of the same element (same number of proton…
Because they have the same electron arrangement
In order to gain a full outer energy level
The smallest particle in an element
What are isotopes?
Isotopes are atoms of the same element (same number of proton…
Why are isotopes identical in their ch…
Because they have the same electron arrangement
1 of 10