First 15 Elements of periodic table by atomic number

Hydrogen (H)

1

Neon (Ne)

10

Sodium (Na)

11

Magnesium (Mg)

12

Aluminum (Al)

13

Silicon (Si)

14

Phosphorus (P)

15

helium (He)

2

lithium (Li)

3

beryllium (Be)

4

boron (B)

5

carbon (C)

6

nitrogen (N)

7

oxygen (O)

8

flourine (F)

9