need-to-know elements

hydrogen symbol

H

hydrogen number

1

helium symbol

He

helium number

2

lithium symbol

Li

lithium number

3

beryllium symbol

Be

beryllium number

4

boron symbol

B

boron number

5

carbon symbol

C

carbon number

6

nitrogen symbol

N

nitrogen number

7

oxygen symbol

O

oxygen number

8

fluorine symbol

F

fluorine number

9

neon symbol

Ne

neon number

10

sodium symbol

Na

sodium number

11

magnesium symbol

Mg

magnesium number

12

aluminum symbol

Al

aluminum number

13

silicon symbol

Si

silicon number

14

phosphorus symbol

P

phosphorus number

15

sulfur symbol

S

sulfur number

16

chlorine symbol

Cl

chlorine number

17

argon symbol

Ar

argon number

18

potassium symbol

K

potassium number

19

calcium symbol

Ca

calcium number

20

scandium symbol

Sc

scandium number

21

titanium symbol

Ti

titanium number

22

vanadium symbol

V

vanadium number

23

chromium symbol

Cr

chromium number

24

manganese symbol

Mn

manganese number

25

iron symbol

Fe

iron number

26

cobalt symbol

Co

cobalt number

27

nickel symbol

Ni

nickel number

28

copper symbol

Cu

copper number

29

zinc symbol

Zn

zinc number

30

gallium symbol

Ga

gallium number

31

germanium symbol

Ge

germanium number

32

arsenic symbol

As

arsenic number

33

selenium symbol

Se

selenium number

34

bromine symbol

Br

bromine number

35

krypton symbol

Kr

krypton number

36

rubidium symbol

Rb

rubidium number

37

strontium symbol

Sr

strontium number

38

palladium symbol

Pd

palladium number

46

silver symbol

Ag

silver number

47

cadmium symbol

Cd

cadmium number

48

tin symbol

Sn

tin number

50

iodine symbol

I

iodine number

53

xenon symbol

Xe

xenon number

54

cesium symbol

Cs

cesium number

55

barium symbol

Ba

barium number

56

platinum symbol

Pt

platinum number

78

gold symbol

Au

gold number

79

mercury symbol

Hg

mercury number

80

lead symbol

Pb

lead number

82