- 1. The outermost electrons of an atom are called ________________ electrons.
A) happy
B) negative
C) valence
- 2. The identity of an atom is determined by the number of?
A) protons
B) electrons
C) neutrons
- 3. Where in the atom are protons and neutrons found?
A) shells
B) clouds
C) nucleus
- 4. How many electrons does it take to fill the first shell?
A) eight
B) two
C) ten
- 5. How many electrons does it take to fill the second shell?
A) two
B) eight
C) ten
- 6. Elements with six valence electrons belong to which group?
A) two
B) seventeen
C) six
- 7. Elements with only three shells are located in which period?
A) three
B) eighteen
C) potassium
- 8. Rows are labeled as periods in the Periodic Table?
A) True
B) False
- 9. Columns are labeled as groups in the Periodic Table?
A) True
B) False
- 10. The Bohr Model uses what to describe atom configuration?
A) Shells
B) electrons
C) Dots
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