An element with 3 protons in each atom has an atomic number of:

• 1

• 2

• 3

• 4

An atomic number of 8 means the atom has ________ protons.

• 7

• 8

• 16

• 88

An element with 12 protons in each atom has an atomic number of:

• 12

• 21

• 2

• 24

An element with 20 protons in each atom has an atomic number of:

An element with 64 protons in each atom has an atomic number of:

True or false: The atomic number of an element is the same as the number of protons of its atoms.

• True

• False

True or false: If the number of protons changes in an atom, it becomes a different element.

• True

• False

An element has an atomic number of 35. How many protons do the atoms contain?

• 3

• 35

• 70

• 150

An element has an atomic number of 9. How many protons do the atoms contain?

• 9

• 8

• 7

• 6

An element has an atomic number of 2. How many protons do the atoms contain?