First 5 periods of the periodic table

Name, number, group number, family, amu, and valence electron ct. (excluded for transition metals).

H

Hydrogen

#1

Group 1
Nonmetal

1.008 amu

1 valence electron

He

Helium

#2

Group 18

Noble Gas

4.0026 amu

2 valence electrons

Li

Lithium

#3

Group 1

Alkali Metal

6.94 amu

1 valence electron

Be

Berylium

#4

Group 2

Alkaline Earth Metal

9.0122 amu

2 valence electrons

B

Boron

#5

Group 13

Metalloid

10.81 amu

3 valence electrons

C

Carbon

#6

Group 14

Nonmetal

12.011 amu

4 valence electrons

N

Nitrogen

#7

Group 15

Nonmetal

14.007 amu

5 valence electrons

O

Oxygen

#8

Group 16

Nonmetal

15.999 amu

6 valence electrons

F

Fluorine

#9

Group 17

Nonmetal

18.998 amu

7 valence electrons

Ne

Neon

#10

Group 18

Noble Gas

20.180 amu

8 valence electrons

Na

Sodium

#11

Group 1

Alkali Metal

22.990 amu

1 valence electron

Mg

Magnesium

#12

Group 2

Alkaline Earth Metal

24.305 amu

2 valence electrons

Al

Aluminium

#13

Group 13

Post-transition Metal

26.982 amu

3 valence electrons

Si

Silicon

#14

Group 14

Metalloid

28.085 amu

4 valence electrons

P

Phosphorus

#15

Group 15

Nonmetal

30.974 amu

5 valence electrons

S

Sulfur

#16

Group 16

Nonmetal

32.06 amu

6 valence electrons

Cl

Chlorine

#17

Group 17

Nonmetal

35.45 amu

7 valence electrons

Ar

Argon

#18

Group 18

Noble Gas

39.948 amu

8 valence electrons

K

Potassium

#19

Group 1

Alkali Metal

39.098 amu

1 valence electron

Ca

Calcium

#20

Group 2

Alkaline Earth Metal

40.078 amu

2 valence electrons

Sc

Scandium

#21

Group 3

Transition Metal

44.956 amu

Ti

Titanium

#22

Group 4

Transition Metal

47.867 amu

V

Vanadium

#23

Group 5

Transition Metal

50.942 amu

Cr

Chromium

#24

Group 6

Transition Metal

51.996 amu

Mn

Manganese

#25

Group 7

Transition Metal

54.938 amu

Fe

Iron

#26

Group 8

Transition Metal

55.845 amu

Co

Cobalt

#27

Group 9

Transition Metal

58.933 amu

Ni

Nickel

#28

Group 10

Transition Metal

58.693 amu

Cu

Copper

#29

Group 11

Transition Metal

63.546 amu

Zn

Zinc

#30

Group 12

Transition Metal

65.38 amu

Ga

Gallium

#31

Group 13

Post-transition Metal

69.723 amu

3 valence electrons

Ge

Germanium

#32

Group 14

Metalloid

72.630 amu

4 valence electrons

As

Arsenic

#33

Group 15

Metalloid

74.922 amu

5 valence electrons

Se

Selenium

#34

Group 16

Nonmetal

78.971 amu

6 valence electrons

Br

Bromine

#35

Group 17

Nonmetal

79.904 amu

7 valence electrons

Kr

Krypton

#36

Group 18

Noble Gas

83.798 amu

8 valence electrons

Rb

Rubidium

#37

Group 1

Alkali Metal

85.468 amu

1 valence electron

Sr

Strontium

#38

Group 2

Alkaline Earth Metal

87.62 amu

2 valence electrons

Y

Yttrium

#39

Group 3

Transition Metal

88.906 amu

Zr

Zirconium

#40

Group 4

Transition Metal

91.224 amu

Nb

Niobium

#41

Group 5

Transition Metal

92.906 amu

Mo

Molybdenum

#42

Group 6

Transition Metal

95.95 amu

Tc

Technetium

#43

Group 7

Transition Metal

98 amu

Ru

Ruthenium

#44

Group 8

Transition Metal

101.07 amu

# valence electrons

Rh

Rhodium

#45

Group 9

Transition Metal

102.91 amu

Pd

Palladium

#46

Group 10

Transition Metal

106.42 amu

Ag

Silver

#47

Group 11

Transition Metal

107.87 amu

Cd

Cadmium

#48

Group 12

Transition Metal

112.41 amu

In

Indium

#49

Group 13

Post-transition Metal

114.82 amu

3 valence electrons

Sn

Tin

#50

Group 14

Post-transition Metal

118.71 amu

4 valence electrons

Sb

Antimony

#51

Group 15

Metalloid

121.76 amu

5 valence electrons

Te

Tellurium

#52

Group 16

Metalloid

127.60 amu

6 valence electrons

I

Iodine

#53

Group 17

Nonmetal

126.90 amu

7 valence electrons

Xe

Xenon

#54

Group 18

Noble Gas

131.29 amu

8 valence electrons