Question Bank for Grade 7 Physical Science

Which (3) of these are subatomic particles that form an atom? (choose 3)

• Protons

• Klingons

• Electrons

• Microns

• Neutrons

Where can protons and neutrons be found in an atom?

• On orbitals

• On the outside ring

• Inside the nucleus

• Next to the nucleus

A proton has what charge?

• Positive

• Negative

• Neutral

A neutron has what charge?

• Positive

• Negative

• Neutral

Where can electrons be found?

• On orbitals

• In the nucleus

• In the middle

Which two subatomic particle charges cancel each other out?

• protons and neutrons

• protons and electrons

• electrons and neutrons

• None of the above

Atoms are..

• Really Big

• Medium-sized

• Small

• So tiny you cannot see them

A proton has what charge?

• Positive

• Negative

• Neutral

A neutron has what charge?

• Positive

• Negative

• Neutral

How many protons does Potassium (K) have?

• 19

• 39

• 20

• 58