Atoms and the Periodic Table

The subatomic particles located inside the nucleus are the

• protons

• electrons

• protons and neutrons

• protons and electrons

Protons have this type of charge.

• Positive

• Negative

• Neutral

• None of these

Electrons have this type of charge.

• Positive

• Negative

• Neutral

• None of these

Neutrons have this type of charge.

• Positive

• Negative

• Neutral

• None of these

The atomic number tells you the number of ______ in one atom of an element.

• Protons

• Electrons

• Neutrons

• Protons and neutrons

The atomic mass tells you the number of ___ and ___ in one atom of an element.

• Protons

• Electrons

• Neutrons

• Protons and neutrons

The majority of the volume of an atom comes from the

• Protons

• Neutrons

• Nucleus

• Electrons

The outermost electrons are known as

• Shell electrons

• Valence electrons

• Essential electrons

• Negative electrons

If an atom has 12 protons, how many electrons does it have?

• 6

• 12

• 18

• More information is needed

If an atom has 8 protons and its atomic mass is 17, how many neutrons does the atom have?

• 8

• 9

• 17

• 25