This model this model was the first to show a nucleus, consisting of protons and neutron. Electrons surround the nucleus but are not shown in distinct energy levels.

The "Rutherford Model" of the atom

The "Plum Pudding Model" of the atom

The "Quantum Mechanical Model" of the atom

This model was developed after J.J. Thompson discovered electrons, a particle smaller than an atom. It shows electrons floating freely in a positive region.

The "Plum Pudding Model" of the atom

The "Rutherford Model" of the atom

The "Quantum Mechanical Model" of the atom

In the gold foil experiment, most of the positively charged alpha particles passed through the gold foil, but some were deflected or bounced back. What did we conclude because of this?

Atoms are mostly empty space with a small, dense, positive center

Atoms are small indivisible spheres

Atoms have negatively charged particles which orbit the nucleus

Light is a wave, not a particle

What was the purpose of Rutherford's Gold Foil Experiment?

To investigate the structure of the atom and determine the distribution of positive charge within it.

To study the behavior of electrons in a magnetic field.

To investigate the properties of different types of metals.

To measure the speed of light in a vacuum.

What did Rutherford expect to happen to the alpha particles as they passed through the gold foil?

Some alpha particles would be deflected or bounce back

All alpha particles would pass straight through the gold foil.

The alpha particles would be absorbed by the gold foil.

The alpha particles would change color as they passed through the gold foil.

What did Rutherford observe during the Gold Foil Experiment?

Deflection of alpha particles at large angles

Scattering of alpha particles in all directions.

No deflection of alpha particles.

Absorption of alpha particles by the gold foil.

What conclusion did Rutherford draw from his observations?

The atom has a small, dense, positively charged nucleus at its center, with electrons orbiting around it.

The atom has a small, dense, positively charged nucleus at its center, with protons orbiting around it.

The atom has a large, dense, positively charged nucleus at its center, with electrons orbiting around it.

The atom has a small, dense, negatively charged nucleus at its center, with electrons orbiting around it.

What is true about a neutral atom?

The number of protons equal the number of electrons

The number of protons equal the number of neutrons

The number of neutrons equal the number of electrons

The number of protons, neutrons, and electrons are all different

Nitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope is the most abundant?

Based on the information given, it cannot be determined

To calculate average atomic mass, you need

the atomic mass and percent abundance of each isotope

the atomic mass of each isotope

the percent abundance of each isotope

to find the average of the atomic masses of each isotope

Which statement is true about oxygen-17 and oxygen-18?

They do not have the same number of protons.

Their atoms have an identical mass.

What were J. J. Thomson's three contributions to the atomic theory?

Used the cathode ray tube in his discovery

Created the "plum pudding" model of the atom

Discovered the nucleus -did the gold foil experiment

Created a model of the atom with electrons moving around the nucleus in fixed orbits

What are two facts about Democritus's?

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

Used the cathode ray tube in his discovery

Discovered that the atom is mostly empty space

What is Neils Bohr's contribution to the atomic theory?

Created a model of the atom with electrons moving around the nucleus in a fixed orbits

Discovered that the proton had a positive charge

Believed that atoms of a given element are identical

Atomic structure, Isotopes, Average Atomic mass, Nuclear

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Chemistry, Science, Biology, Physics

11th - 12th Grade

Atomic structure, Isotopes, Average Atomic mass, Nuclear

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128 questions

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

How did Rutherford discover the proton?

Cathode tube ray experiment

Gold Foil Experiment

Planetary Model

Plum Pudding Model

MULTIPLE CHOICE QUESTION

1 min • 12 pts

What scientist is best known for his "Plum Pudding" model of the atom?

J.J. Tomson

Ernest Rutherford

John Dalton

Democritus

MULTIPLE CHOICE QUESTION

20 sec • 12 pts

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

negative and positive charges are spread evenly throughout the atom.

alpha particles have a positive charge.

gold is not a dense as previously thought.

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

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who came up with this model of an atom?

J.J. Thompson

Ernest Rutherford

Neils Bohr

James Chadwick

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is proposed by Erwin Schrodinger?

Planetary model of the atom

Plum pudding model of the atom

Saturnian model of the atom

Electron cloud model of the atom

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Discoverer of the neutron?

Jimmy

Chadwick

Charleston

Rutherford

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Earth, Air, Fire, and Water were the fundamental elements propose by ___.

Aristotle

Democritus

Plato

Galileo

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Atomic structure, Isotopes, Average Atomic mass, Nuclear

How did Rutherford discover the proton?

What scientist is best known for his "Plum Pudding" model of the atom?

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

Who came up with this model of an atom?

Which of the following is proposed by Erwin Schrodinger?

Discoverer of the neutron?

Earth, Air, Fire, and Water were the fundamental elements propose by ___.

The atom is mostly empty space is a confirmed idea made by who?

Ernst Rutherford discovered which part of the atom through the use of gold foil?

Which is the correct sequence of the scientists who made major changes in the model of the atom?
1-JJ Thomson
2-Erwin Schrodinger
3-John Dalton
4-Niels Bohr
5-Ernest Rutherford

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Atomic structure, Isotopes, Average Atomic mass, Nuclear

How did Rutherford discover the proton?

What scientist is best known for his "Plum Pudding" model of the atom?

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

Who came up with this model of an atom?

Which of the following is proposed by Erwin Schrodinger?

Discoverer of the neutron?

Earth, Air, Fire, and Water were the fundamental elements propose by ___.

The atom is mostly empty space is a confirmed idea made by who?

Ernst Rutherford discovered which part of the atom through the use of gold foil?

Which is the correct sequence of the scientists who made major changes in the model of the atom?1-JJ Thomson2-Erwin Schrodinger3-John Dalton4-Niels Bohr5-Ernest Rutherford

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Which is the correct sequence of the scientists who made major changes in the model of the atom?
1-JJ Thomson
2-Erwin Schrodinger
3-John Dalton
4-Niels Bohr
5-Ernest Rutherford