LG02 - Atomic Structure Review

Which of the following make up an atom?

• protons

• neutrons

• neutrinos

• electrons

• negatrons

Which subatomic particle has a negative charge?

• proton

• neutron

• electron

• all of the above

Which subatomic particle has a positive charge?

• protons

• electron shells

• neutrons

• electrons

What part of the atom is indicated by the red sphere?

• nucleus

• electron shells

• electrons

• neutrons

Which of the following particles has the smallest mass? (It does not contribute to the atomic mass.)

• neutron

• proton

• nucleus

• electron

The term "neutral" means...

• having only a little bit of charge

• having a positive charge

• having a negative charge

• having no charge at all

Atoms are neutral because they have the same number of...

• protons and neutrons

• protons and electrons

• electrons and neutrons

To create an ion without changing the identify of an atom, you should change the number of __________.

• protons

• neutrons

• electrons

• electron shells

If an atom has 7 protons and 7 electrons, what is its charge?

• 0

• +1

• –1

• +7

• –7

If an atom has 8 protons and 10 electrons, what is its charge?

• 0

• –2

• +2

• –8

• +8