11/16/20 - 6.5 Elements & Atoms

TRUE or FALSE: You can identify the element by counting the number of protons or electrons.

• TRUE

• FALSE

On the Periodic Table, the number on top of the entry that tells the number of protons or electrons is called ___.

• atomic number

• atomic mass

• atomic atom

• atomic molecule

If an atom has 15 protons, how many electrons should it have?

• 7.5

• 30

• 15

What are the building blocks of all matter?

• atoms

• bricks

• energy

• chemical changes

If Helium has 2 electrons, how many protons will it have?

• 4

• 2

• 10