Physical Science B Unit 4 Lessons 1-2

What two subatomic particles are found in the nucleus of an atom?

• electrons, protons

• electrons, neutrons

• positrons, neutrons

• neutrons, protons

What subatomic particle has a negative charge?

• electron

• neutron

• proton

The overall charge of an atom is ___________.

• positive

• negative

• neutral

How does a neutral atom become a poitively charged cation?

• gaining neutrons

• losing neutrons

• gaining electrons

• losing electrons

How does a neutral atom become a negatively charged anion?

• gaining neutrons

• losing neutrons

• gaining electrons

• losing electrons

A cation has ___________ protons than electrons

• fewer

• more

An anion has __________ protons than electrons

• fewer

• more

The force of attraction or repulsion between electrically charged objects is called

• atomic force

• nuclear force

• electric force

• ionic force

Whic statement is false?

• Opposite charges attract.

• Like charges attract

• Like charges repel

What charge creates an electric field that points inward?

• neutral charge

• positive charge

• negative charge