1. The _____________ is the number at the top of a periodic table tile and tells you how many protons are in the element.

1. The one- or two-letter abbreviation for an element is called its ________________.

The periodic table is arranged in rows called ____________ and columns called groups.

What is the atomic number for Carbon?

• 6

• 12.011

• 12

• 11

What is the chemical symbol for Carbon?

What is the atomic mass for Fluorine?

• 9

• 19

• 18.998

• 18

What is the atomic number (and number of protons) of Fluorine?

• 9

• 18

• 18.998

• 19

What is the chemical symbol of Fluorine?

What is the atomic number of Helium?

• 2

• 4.002

• 4

• 3

If the number of protons in an atom is equal to the number of elections, how many electrons does Oxygen have?

• 8

• 15

• 16

• 9