Science - Unit 2

What is this atom's overall / "net" charge?

• neutral/uncharged

• negatively charged

• positively charged

Answer explanation

What is this particle called?

• electron

• proton

• neutron

Answer explanation

What is this particle called?

• protons

• neutrons

• electrons

Answer explanation

What particles is nucleus composed of?

• electrons and protons

• neutrons and electrons

• electrons and protons

• protons and neutrons

Answer explanation

What is this particle called?

• electron

• neutron

• proton

Answer explanation

What particles have a positive electric charge?

Answer explanation

What particles have a negative charge?

Answer explanation

What particles are outside the nucleus?

Answer explanation

Why are atoms always neutral in their original state?

Answer explanation

Because the number of electrons equals the number of protons so they cancel each other out

What charge does this atom have?

• negative

• neutral/uncharged

• positive

Answer explanation