proposed law of conservation of mass

What did the gold foil experiment help conclude?

atom is mostly empty space with tiny positive and dense center (nucleus)

Joseph Louis Proust said..?

Proposed Law of Definite Proportions

describes the physical properties of nature at small scales

all matter is made up of tiny invisible particles called atoms

discovered the proton and developed the atomic #

Michael Faraday said...?

suggested the structure of an atom is related to electricity

Developed an equation that treated electrons in atoms as waves

said that electromagnetic radiation has a dual-wave particle nature

Proposed relationship between quantum of energy to frequency of radiation

Measured the charge of the electron using oil drop experiment

Suggested e- are waves confined to space around atomic nucleus

uncertainty principal- it is hard to find position and velocity of e-

Concluded there are two kinds of electrical charge + and -

proposed atomic theory of matter in 1803

Concluded the atom has negetively charges particles that he named electrons

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Duplicate of History and the Development of Modern Chemistry

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Quiz on historical chemists and their experiments that shape modern chemistry today.

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Answers

1
Antoine Lavoisier
proposed law of definite proportions
proposed law of conservation of mass
proposed the equation E=hv
discovered oxygen
2
What did the gold foil experiment help conclude?
concluded the atom has negetively charged particles called electrons
help model electrons in an orbit called the planetary model
electromagnetic radiation
atom is mostly empty space with tiny positive and dense center (nucleus)
3
Joseph Louis Proust said..?
described mathematically the wave properties of electrons
measured charge of the electron using oil drop experiement
e- are waves confined to the space around nucleus
Proposed Law of Definite Proportions
4
The quantum theory.
describes the physical properties of nature at small scales
that the Earth's solid outer crust, the lithosphere, is separated in plates
determines that the laws of physics are the same for non-accelerating thing
IDK
5
James Chadwick
discovered mathematically the wave properties of electrons
discovered the proton
discovered neutrons
discovered radioactivty
6
Democritus said..?
all matter is made up of tiny invisible particles called atoms
proposed atomic theory of matter
discovered oxygen
discovered radioactivity
7
Niels Bohr's model states that
all of the above
electrons move in orbits
the nucleus contains protons and neutrons
the atom is mostly empty space
8
Henry Moseley
proposed gold foil experiment and that atom is just empty space
discovered oxygen
suggested e- are waves confined to the space around atomic nucleus
discovered the proton and developed the atomic #
9
Michael Faraday said...?
electrons are waves confined to the space around the nucleus
measured the charge of an oil drop experiment
proposed law of conservation of mass
suggested the structure of an atom is related to electricity
10
Erwin Schrodinger
Developed an equation that treated electrons in atoms as waves
introduced idea of dual wave nature of the atom
suggested structure of atom is related to electricity
discovered radioactivity
11
Albert Einstein
discovered protons
concluded the atom has - charged particles called electrons
measure charge with oil drop experiement
said that electromagnetic radiation has a dual-wave particle nature
12
Max Planck
proposed that all matter is made up of tiny particles called atoms
proposed model of which electrons travel around nucleus in orbits
concluded two types of charge + and -
Proposed relationship between quantum of energy to frequency of radiation
13
Robert Millikan
Measured the charge of the electron using oil drop experiment
concluded there are - charged particles
developed uncertainity principal no exact position/velocity of atom
proposed law of conservation of mass
14
Joseph Priestly
developed the equation that treated electrons in atoms as waves
measured charge of the electron using the oil drop experiment
discovered oxygen
discovered radioactivity
15
Louis de Broglie
proposed atomic theory of matter
Suggested e- are waves confined to space around atomic nucleus
discovered oxygen
developed uncertainty principal
16
Rutherford
Oil Drop Experiment
Cathode Ray Experiment
Kite and Electricity Experiment
Gold Foil Experiment
17
Werner Heisenberg
uncertainty principal- it is hard to find position and velocity of e-
discovered radioactivity
discovered neutrons
proposed E=hv
18
Henri Becquerel
proposed law of conservation of mass
discovered oxygen
discovered E=hv
discovered radioactivity
19
Benjamin Franklin
proposed E=hv
Concluded there are two kinds of electrical charge + and -
discovered radioactivity
discovered neutrons
20
John Dalton
proposed atomic theory of matter in 1803
discovered oxygen
proposed E=hv
discovered radioactivity
21
J.J Thomson
proposed law of conservation of mass
described mathematically the wave properties of electrons
Concluded the atom has negetively charges particles that he named electrons
concluded there were two kinds of electrical charge + and -

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