How can we help?

You can also find more resources in our Help Center.

Study sets matching "atomic history"

Study sets
Classes
Users

Study sets matching "atomic history"

9 terms
Atomic History
Dalton
Bohr
Thomson
Rutherford
Created the atomic theory. Said all elements were made of uni…
His atomic model had atoms built up of successive orbital she…
Discovered the negative charge within an atom and theorized t…
He established that the nucleus was: very dense, very small a…
Dalton
Created the atomic theory. Said all elements were made of uni…
Bohr
His atomic model had atoms built up of successive orbital she…
13 terms
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
15 terms
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Positively charged sphere with electrons in it
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
Atomic History
What did Thompson determine and contri…
What was Crookes' major contribution t…
Cathode Ray Experiment
Plum Pudding Model
He determined the mass of electrons and that the ATOM HAS NEG…
He determined that atoms had negative particles, completed th…
Led to the discovery that atoms had negative parts to them. T…
Model that concluded an atom is a small structure that is pos…
What did Thompson determine and contri…
He determined the mass of electrons and that the ATOM HAS NEG…
What was Crookes' major contribution t…
He determined that atoms had negative particles, completed th…
15 terms
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
7 terms
Atomic History
Democritus
Atoma
John Dalton
Joseph John Thompson
In 406 BC developed the idea of atoms
Greek for indivisible
In 1908 he suggested that all matter was made up of tiny sphe…
1898 He found that atoms could sometimes project afar smaller…
Democritus
In 406 BC developed the idea of atoms
Atoma
Greek for indivisible
18 terms
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
31 terms
Atomic History, Atoms
Dalton
Bohr
Thomson
Rutherford
Created the atomic theory. Said all elements were made of uni…
His atomic model had atoms built up of successive orbital she…
Discovered the negative charge within an atom and theorized t…
He established that the nucleus was: very dense, very small a…
Dalton
Created the atomic theory. Said all elements were made of uni…
Bohr
His atomic model had atoms built up of successive orbital she…
18 terms
History of Atom
Atom
Democritus
John Dalton
Aristotle
smallest part of an element that keeps the element's properties
Greek philosopher that believed atoms were the smallest piece…
English chemist who developed the Atomic Theory
philosopher that stated all matter is composed of 4 elements…
Atom
smallest part of an element that keeps the element's properties
Democritus
Greek philosopher that believed atoms were the smallest piece…
6 terms
Atomic History
Democritus
Dalton
Thomson
Bohr
mental model of the atom; Greek philosopher
Formed the atomic theory model of the atom; English schooltea…
Proposed the "plum-pudding" model of the atom; discovered the…
Developed the model of the atom in which electrons orbit the…
Democritus
mental model of the atom; Greek philosopher
Dalton
Formed the atomic theory model of the atom; English schooltea…
9 terms
Atomic History
Aristotle
Democritus
Dalton
Thomson
thought matter consisted of 4 primary elements: earth, air, f…
thought atoms were indestructible, small, hard spheres
developed first unified atomic theory; atoms of same element…
thought the atom was consisted of a positive mass, with negat…
Aristotle
thought matter consisted of 4 primary elements: earth, air, f…
Democritus
thought atoms were indestructible, small, hard spheres
24 terms
History of the Atom & Atomic Structure
neutrons
nucleus
Rutherford
Bohr
subatomic particle with a no charge
small, dense, positively charged center containing protons an…
the atom is mostly empty space with a dense, positively charg…
electrons orbit around the nucleus on energy levels or "shell…
neutrons
subatomic particle with a no charge
nucleus
small, dense, positively charged center containing protons an…
23 terms
Atomic History
nucleus
electron cloud
proton
neutron
the center "core" of the atom
The area around the nucleus of an atom
The positive subatomic particle in the nucleus
the neutral subatomic particle in the nucleus
nucleus
the center "core" of the atom
electron cloud
The area around the nucleus of an atom
15 terms
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
What does Thomson's model look like an…
J.J. Thompson
Democritus
Dalton
The Plum Pudding Model
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
17 terms
History of the Atom
Democritus
Aristotle
John Dalton
JJ Thomson
460 BC; There is a limit to how many times one can break matt…
300 BC; All matter composed of fire, water, earth, and air. F…
1803; all matter made of atoms; all atoms of an element are a…
1897; finds the electron of an atom using a cathode ray tube;…
Democritus
460 BC; There is a limit to how many times one can break matt…
Aristotle
300 BC; All matter composed of fire, water, earth, and air. F…
27 terms
Atoms and Atomic History and counting atoms
Democritus (400 BC)
John Dalton (1803)
Joseph John "J. J." Thomson (1897)
Ernest Rutherford (1911)
Greek, Made the original atomic theory. He belived atoms were…
Developed modern atomic theory:... •All elements are made up of…
He is credited for the discovery of the electron.
In 1911, he postulated that atoms have their positive charge…
Democritus (400 BC)
Greek, Made the original atomic theory. He belived atoms were…
John Dalton (1803)
Developed modern atomic theory:... •All elements are made up of…
30 terms
Atomic Theory and Atomic History
Democritus
Aristotle
Dalton
Dalton's Postulates
Greek Philosopher who was laughing stock because of Aristotle…
Greek Philosopher who didn't believe in Democritus' discovery…
Description: British Chemist and Meteorologist... Contributions:…
1. Matter is composed of extremely small particles called ato…
Democritus
Greek Philosopher who was laughing stock because of Aristotle…
Aristotle
Greek Philosopher who didn't believe in Democritus' discovery…
17 terms
Atoms and Atom Model History
Atoms
Protons
Atomic Number
Neutrons
The smallest component of an element having the chemical prop…
Located in the nucleus and have a positive (+) charge. They h…
the number of protons in the nucleus of an atom
A subatomic particle that has no charge and is found in the n…
Atoms
The smallest component of an element having the chemical prop…
Protons
Located in the nucleus and have a positive (+) charge. They h…
10 terms
Atomic History
Democritus
Dalton
Dalton's Atomic Theory
Thomson
first person to theorize (think) that matter is made from sma…
developed an atomic theory consisting of 3 main parts, most o…
all substances are made of atoms; all atoms of the same eleme…
developed an atomic theory to include positive and negative p…
Democritus
first person to theorize (think) that matter is made from sma…
Dalton
developed an atomic theory consisting of 3 main parts, most o…
13 terms
Atomic History
John Dalton
J.J. Thomson
Ernest Rutherford
Neils Bohr
- 1808... - first to use scientific evidence after the philosoph…
-1897... - discovered that an atom acts neutral and has electron…
-1911... - discovered an atom has a lot of empty space and a den…
-1913... - used quantum theory to discover electrons orbit aroun…
John Dalton
- 1808... - first to use scientific evidence after the philosoph…
J.J. Thomson
-1897... - discovered that an atom acts neutral and has electron…
11 terms
Atomic History
Dalton
Marie and Pierre Curie
Henri Becquerel
J.J. Thomson
elements are made up of atoms
Two discoveries... ☢ Intensity of rays → prop. to amount of ura…
Conducted experiment: Exposed crystal containing uranium to s…
Discovered the electron in a series of experiments designed t…
Dalton
elements are made up of atoms
Marie and Pierre Curie
Two discoveries... ☢ Intensity of rays → prop. to amount of ura…
8 terms
Atomic History
Aristotle
Democritus
Dalton
Thomson
thought matter consisted of 4 primary elements: earth, air, f…
thought atoms were indestructible, small, hard spheres
developed first unified atomic theory; atoms of same element…
thought the atom was consisted of a positive mass, with negat…
Aristotle
thought matter consisted of 4 primary elements: earth, air, f…
Democritus
thought atoms were indestructible, small, hard spheres
12 terms
Atomic History
Chadwick
Rutherford
JJ Thomson
Marie Curie
Proved the existence of NEUTRONS
Gold foil method/discovered the NUCLEUS (where the mass origi…
PLUM PUDDING MODEL/used CATHODE RAYS to conclude that electro…
RADIATION came from within the atom
Chadwick
Proved the existence of NEUTRONS
Rutherford
Gold foil method/discovered the NUCLEUS (where the mass origi…
15 terms
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Positively charged sphere with electrons in it
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
31 terms
Atomic History, Atoms
Dalton
Bohr
Thomson
Rutherford
Created the atomic theory. Said all elements were made of uni…
His atomic model had atoms built up of successive orbital she…
Discovered the negative charge within an atom and theorized t…
He established that the nucleus was: very dense, very small a…
Dalton
Created the atomic theory. Said all elements were made of uni…
Bohr
His atomic model had atoms built up of successive orbital she…
15 terms
Atoms and Atom Model History
Atoms
Protons
Atomic Number
Neutrons
The smallest component of an element having the chemical prop…
Located in the nucleus and have a positive (+) charge. They h…
the number of protons in the nucleus of an atom
A subatomic particle that has no charge and is found in the n…
Atoms
The smallest component of an element having the chemical prop…
Protons
Located in the nucleus and have a positive (+) charge. They h…
37 terms
Atomic History
Planck/Einstein
Gell-Mann/Zweig
Chadwick
Thomson
wave-particle duality of light
Quarks
discovered neutrons
discovered electrons
Planck/Einstein
wave-particle duality of light
Gell-Mann/Zweig
Quarks
21 terms
Atomic History
nucleus
electron cloud
proton
neutron
the center "core" of the atom
The area around the nucleus of an atom
The positive subatomic particle in the nucleus
the neutral subatomic particle in the nucleus
nucleus
the center "core" of the atom
electron cloud
The area around the nucleus of an atom
9 terms
Atomic History
isotope
radioisotope
Democritus's thoughts on the atom
Dalton's thoughts on the atom
atoms that have the same number of protons but a different nu…
an unstable atoms that undergoes radioactive decay
-matter is composed of indestructible basic units of matter c…
-all matter is made of indivisible and indestructible atoms... -…
isotope
atoms that have the same number of protons but a different nu…
radioisotope
an unstable atoms that undergoes radioactive decay
Atomic History, Atoms
Dalton
Bohr
Thomson
Rutherford
Created the atomic theory. Said all elements were made of uni…
His atomic model had atoms built up of successive orbital she…
Discovered the negative charge within an atom and theorized t…
He established that the nucleus was: very dense, very small a…
Dalton
Created the atomic theory. Said all elements were made of uni…
Bohr
His atomic model had atoms built up of successive orbital she…
11 terms
Atomic History
Dmitri Meedeleev
Henry Moseley
Ernest Rutherford
Niels Bohr
arranged the periodic table by atomic mass
arranged the periodic table by atomic number
discovered the nucleus of an atom... (gold foil experiment)
created the Bohr model and discovered that electrons are in o…
Dmitri Meedeleev
arranged the periodic table by atomic mass
Henry Moseley
arranged the periodic table by atomic number
17 terms
History of the Atom
Democritus (460 - 370 BC)
John Dalton (1766 - 1844)
JJ Thomson (1856 - 1940)
Ernest Rutherford (1871 - 1937)
a greek philosopher who was first to propose the idea that at…
revived and revised Democritus's ideas about the atom based o…
identified the first subatomic particle, the electron, using…
in 1911, he performed his famous gold-foil experiment and dis…
Democritus (460 - 370 BC)
a greek philosopher who was first to propose the idea that at…
John Dalton (1766 - 1844)
revived and revised Democritus's ideas about the atom based o…
9 terms
Atomic History
Democritus
Aristotle
Dalton
Thomson
Named an atom "Atom" Discontinuous theory
Continuous Theory
Billard Ball model. Discontinuous theory
Plum pudding model
Democritus
Named an atom "Atom" Discontinuous theory
Aristotle
Continuous Theory
13 terms
Atomic History
Democritus
John Dalton
Dalton ct.
Amadeo Avogadro
400 B.C. Greek philosopher. ... Thought that all matter was comp…
1803 British school teacher... Atomic Theory: *1. Elements are c…
Dalton's atomic theory was accepted because it successfully e…
1811 ... All gases having the same volume and temperature have s…
Democritus
400 B.C. Greek philosopher. ... Thought that all matter was comp…
John Dalton
1803 British school teacher... Atomic Theory: *1. Elements are c…
11 terms
Atomic History
Democritus
John Dalton... (Atomic theory was accepte…
Amadeo Avogadro
Dimitri Mendeleev
-Greek philosopher... -Thought all matter was composed of small,…
-British school teacher... -Based on data from chemical reaction…
-All gases having the same volume and temperature have same n…
-Russian chemist... -Published arrangements of known elements... -C…
Democritus
-Greek philosopher... -Thought all matter was composed of small,…
John Dalton... (Atomic theory was accepte…
-British school teacher... -Based on data from chemical reaction…
Atomic History
Democritus
John Dalton
JJ Thomson
Ernest Rutherford
Greek philosopher who first devised the concept and name of a…
Created the first Atomic Theory. 2 of these postulates have b…
Discovered negatively charged electrons through cathode ray e…
Discovered the nucleus/proton and Alpha/Beta rays by shooting…
Democritus
Greek philosopher who first devised the concept and name of a…
John Dalton
Created the first Atomic Theory. 2 of these postulates have b…
11 terms
Atomic History
Democritus
John Dalton
Amadeo Avogadro
Dimitri Mendeleev
Greek philosopher, 400 BC... Thought that all matter was compose…
British school teacher, 1803... Based on data from chemical reac…
1811... All gases having the same volume and temperature have sa…
Russian chemist, 1969... Published arrangements of known element…
Democritus
Greek philosopher, 400 BC... Thought that all matter was compose…
John Dalton
British school teacher, 1803... Based on data from chemical reac…
11 terms
Atomic History
Democritus
John Dalton
Amadeo Avogadro
Dimitri Mendeleev
(400BC)(Greek philosopher) Thought that all matter was compos…
(1803)(British School Teacher) made atomic theory:... - elements…
all gases having the same volume and temperature have same nu…
(1869)(Russian Chemist) Published arrangements of known eleme…
Democritus
(400BC)(Greek philosopher) Thought that all matter was compos…
John Dalton
(1803)(British School Teacher) made atomic theory:... - elements…
11 terms
Atomic History
Democritus
John Dalton
Amadeo Avogadro
Dimitri Mendeleev
Greek philosopher, thought all matter was composed of small,…
British school teacher, formed atomic theory:... 1. Elements are…
All gases having the same volume and temperature have same nu…
Russian Chemist, Published arrangements of known elements. Cl…
Democritus
Greek philosopher, thought all matter was composed of small,…
John Dalton
British school teacher, formed atomic theory:... 1. Elements are…
Atomic History
Discovered the electron
This person stated that things in the…
Developed the atom model that looked l…
This model was developed by Thomson. I…
J.J. Thompson
Democritus
Dalton
Discovered the electron
J.J. Thompson
This person stated that things in the…
Democritus
8 terms
Atomic History
Aristotle
Democritus
Dalton
Thomson
thought matter consisted of 4 primary elements: earth, air, f…
thought atoms were indestructible, small, hard spheres
developed first unified atomic theory; atoms of same element…
thought the atom was consisted of a positive mass, with negat…
Aristotle
thought matter consisted of 4 primary elements: earth, air, f…
Democritus
thought atoms were indestructible, small, hard spheres
14 terms
Atomic History
Democritus
John Dalton
Amadeo Avogadro
Dimitri Mendeleev
A Greek philosopher who thought that all matter was composed…
A British school teacher who formed the Atomic Theory (1803):…
Distinguished difference between atoms and molecules (1811)
A Russian chemist who published arrangements of known element…
Democritus
A Greek philosopher who thought that all matter was composed…
John Dalton
A British school teacher who formed the Atomic Theory (1803):…
10 terms
Atomic History
Democritus ... 400 BC
John Dalton ... 1803
1811... Avogadro
1869... Mendeleev
"all matter was composed of small, indivisible particles"... you…
1. elements are composed of atoms ... 2. can not make or destroy…
1. all gases that take up the same volume and temperature hav…
published the first periodic table based on chemical properti…
Democritus ... 400 BC
"all matter was composed of small, indivisible particles"... you…
John Dalton ... 1803
1. elements are composed of atoms ... 2. can not make or destroy…
43 terms
Atomic History
Greeks
Alchemy
Law of Conservation of Mass
Law of Definite Proportions
400 BC, matter composed of four elements(water, wind, earth,…
Late 1600s, Goal to transmute metals to gold, use of philosop…
In any physical or chemical reaction, mass neither created no…
In samples of any chemical compound masses of elements are al…
Greeks
400 BC, matter composed of four elements(water, wind, earth,…
Alchemy
Late 1600s, Goal to transmute metals to gold, use of philosop…
11 terms
Atomic History
Democritus - 400 BC
John Dalton - 1803
Amadeo Avogadro - 1811
Dimitri Mendeleev - 1869
Greek Philosopher... Thought all matter was composed of small, i…
British school teacher... Based on chemical reactions and behavi…
All gases having same volume and temp have same number of par…
Russian Chemist... Published arrangements of known elements.... Cla…
Democritus - 400 BC
Greek Philosopher... Thought all matter was composed of small, i…
John Dalton - 1803
British school teacher... Based on chemical reactions and behavi…
20 terms
Atomic History
Democritus and Aristotle
Democritus
Aristotle
Lavoisier
400 BCE
Small indivisible particles, no experiments
Dryness, wetness, cold, continuous
1789
Democritus and Aristotle
400 BCE
Democritus
Small indivisible particles, no experiments
6 terms
Atomic History
Democritus
Dalton
Thompson
Milikan
no experiments... all matter made of atoms
atoms are invisible and indestructable... all atoms in an elemen…
Cathode ray experiment... negatively charged rays attracted to p…
Oil drop experiment... Determined the mass and charge of an elec…
Democritus
no experiments... all matter made of atoms
Dalton
atoms are invisible and indestructable... all atoms in an elemen…
12 terms
Atomic History
Democritus
Dalton's Atomic Theory (1803)
J.J. Thompson (1897) "Plum Pudding Mod…
Ernest Rutherford
Greek philosopher from 250 B.C. who came up with the atom or…
-All matter is made up of atoms. Atoms are indivisible and in…
-used Cathode Ray Tube... -discovered the subatomic particle, th…
-used Gold-Foil experiment... -the positive charge is centralize…
Democritus
Greek philosopher from 250 B.C. who came up with the atom or…
Dalton's Atomic Theory (1803)
-All matter is made up of atoms. Atoms are indivisible and in…
15 terms
Atomic History
This person stated that things in the…
Chemical changes join, separate, or re…
Pudding model
Gold foil experiment and found out abo…
Democritus
Dalton
Thomson model called....
Rutherford
This person stated that things in the…
Democritus
Chemical changes join, separate, or re…
Dalton
1 of 10