Periodic Table Atomic Numbers (1-20)

What is the atomic number for Helium?

• 1

• 7

• 2

• 8

What is the atomic number for Magnesium?

• 10

• 11

• 13

• 12

What is the atomic number for Oxygen?

• 9

• 7

• 6

• It isn't any of these

What is the atomic number for Boron?

• 5

• 13

• 3

• 12

What is the atomic number for Nitrogen?

• 9

• 8

• 7

• 10

Tags

NGSS.MS-PS1-1

What is the atomic number for Lithium?

• 2

• 1

• 3

• 24

What is the atomic number for Carbon?

• 8

• 7

• 6

• 15

What is the atomic number for Beryllium?

• 6

• 5

• 4

• 7

Tags

NGSS.MS-PS1-1

What is the atomic number for Hydrogen?

• 13

• 1

• 2

• 12

Tags

NGSS.MS-PS1-1

What is the atomic number for Phosphorus?

• 27

• 15

• 16

• 26

Tags

NGSS.MS-PS1-1