1. All matter consists of particles called _______________ .
A. Units
B. Atoms
C. Cells
D. Molecules
2. Atoms consist of parts called protons, neutrons, and ____________ .
A. Electrons
B. Photons
C. Neutral
D. Potassium
3. Each proton has a ____________ electrical charge.
A. Positive
B. Negative
C. Neutral
D. Shocking
4. Each electron has a ______________ electrical charge.
A. Positive
B. Negative
C. Neutral
D. Shocking
5. Each neutron has an electrically ___________ charge.
A. Positive
B. Negative
C. Neutral
D. Shocking
6. The nucleus of an atom consist protons and ______________ .
A. Electrons
B. Neutrons
C. Photons
D. Neutral
7. Electrons move around ____________ the nucleus.
A. Inside
B. Outside
C. On top of
D. Without
8. Atomic number is determined by the number of ______________.
A. Neutrons
B. Electrons
C. Protons
D. Photons
9. A (an) __________ is a combination of two or more atoms that are held together by
chemical bonds.
A. Ion
B. Molecule
C. Compound
D. Oxide