Which scientist proposed the atomic model depicted?

Schrodinger/Heisenberg and Chadwick

Which scientist proposed the atomic model depicted?

Schrodinger/Heisenberg and Chadwick

What is the significance of protons in the atom?

Gives the atom its identity as an element

Determines an atom's chemical properties

Rutherford's gold foil experiment provided evidence that...

There is a dense positively charged nucleus at the center of an atom.

Negative and positive charges are spread evenly throughout the atom.

Alpha particles have a positive charge.

Gold is not a dense as previously thought.

J.J. Thomson provided evidence that an atom...

contains negatively charged particles

is the smallest particle of matter

What contribution did John Dalton make to atomic theory?

He discovered that every element consisted of only one type of atom.

He discovered that every atom was positively charged.

He discovered that atoms had nucleus.

He discovered that atoms could be divided into smaller parts.

Niels Bohr suggested that electrons.......

electrons are scattered throughout the atom

electrons move according to their energy level

J.J. Thomson provided evidence that an atom...

contains negatively charged particles

is the smallest particle of matter

What is the atomic number?

the number of protons in the nucleus

the number of protons and neutrons in the nucleus

the number of neutrons in the nucleus

the number of protons in the energy levels

How is the number of neutrons in the nucleus of an atom calculated?

Subtract the number of p+ from the mass number

Add the number of e- and p+ together

Subtract the number of e- from p+

Add the mass number to the number of e-

J.J. Thomson provided evidence that an atom...

contains negatively charged particles

is the smallest particle of matter

What were John Dalton three contributions to atomic history?

Believed that atoms of a given element are identical

Hypothesized that the atom is a tiny, hard sphere

Discovered that the atom is mostly empty space

Believed that the universe was made of tiny "uncuttable" particles

What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?

John Dalton, JJ Thomson, Ernest Rutherford, and Neils Bohr

Neils Bohr, Ernest Rutherford, JJ Thomson, and John Dalton

JJ Thomson, John Dalton, Neils Bohr, and Ernest Rutherford,

John Dalton, Neils Bohr, JJ Thomson, and Ernest Rutherford

Atomic Structure and Theory

Authored by Heather Hall

Science

8th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subatomic particles with a positive charge

neutrons

atomic mass

protons

isotopes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Discovered the nucleus of the atom through the Gold Foil Experiment

Rutherford

Chadwick

Thomson

Dalton

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Discovered the electron within the atom

Thomson

Chadwick

Schrodinger & Heisenberg

Dalton

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Created the Planetary Model of the atom

Bohr

Dalton

Rutherford

Chadwick

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Believed that atoms of the same element are identical to each other

Bohr

Rutherford

Dalton

Thomson

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Most of the volume an atom is made of this

the nucleus

the protons

the neutrons

empty space

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The overall charge of all atoms (not ions)

positive

negative

neutral

sometimes positive and sometimes negative

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Atomic Structure and Theory

Subatomic particles with a positive charge

Discovered the nucleus of the atom through the Gold Foil Experiment

Discovered the electron within the atom

Created the Planetary Model of the atom

Believed that atoms of the same element are identical to each other

Most of the volume an atom is made of this

The overall charge of all atoms (not ions)

The best images of atoms look fuzzy because of their

The atom's mass is determined by the number of

All atoms of a particular element have the same number of these

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