Atomic Theory

Question 1

Which statement correctly describes the nucleus of the atom?

Revolt · Accepted Answer

The nucleus of the atom contains most of the mass of an atom.

Question 2

Question 3

Revolt · Accepted Answer

6

Question 3

Which of these phrases would go in the overlap? Select two options.

Revolt · Accepted Answer

Found in the nucleus; Has mass of one amu

Question 4

Which statement(s) correctly compare the masses of protons, neutrons, and electrons? Select two options.Protons and neutrons have similar mass.Protons and electrons have similar mass.Neutrons and electrons have similar mass.Protons are smaller than a neutron or an electron.Neutrons are smaller than a proton or an electron.Electrons are smaller than a proton or a neutron.

Revolt · Accepted Answer

Protons and neutrons have similar mass.; Electrons are smaller than a proton or a neutron.

Question 5

An atomic scientist was studying an atom and through experimentation found that the total negative charge of the area surrounding the nucleus is -9. Which statement correctly describes this atom?

Revolt · Accepted Answer

This atom has nine electrons.

Question 6

How many protons does this atom have? How many neutrons does this atom have? How many electrons does this atom have?

Revolt · Accepted Answer

6; Selection 1: 6; Selection 2: 8; Selection 3: 6

Question 7

Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an atom that has two protons, four neutrons, and two electrons. Which model is like Cora’s?

Revolt · Accepted Answer

Option B

Question 8

Question 10

Revolt · Accepted Answer

8

Atomic Theory Answers

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