ICP Ch. 4 Test

Name (First and last)

1. In an atom, the positive charge is concentrated in the

• electron cloud
• nucleus
• multiple sites around the atom

2. Which subatomic particle has a negative charge?

• proton
• neutron
• electron

3. Which subatomic particle has a positive charge?

• proton
• neutron
• electron

4. Which subatomic particle has no charge?

• proton
• neutron
• electron

5. The number of protons in one atom of an element is that element's

• mass number
• isotope
• atomic number

6. The mass of an atom is mostly found in the

• nucleus
• electron cloud
• orbital

7. When an electron moves to a higher energy level you can assume that

• it lost energy
• it gained energy
• neither of the above

8. When an electron moves to a lower energy level you can assume that

• it lost energy
• it gained energy
• neither of the above

9. Atoms of the same element that have different numbers of neutrons and different mass numbers are called

• isotopes
• neutral atoms
• positive atoms