Question

H 1
Hydrogen
He 4
Helium
Li 6.94
Lithium
Be 9.01
Beryllium
B 10.81
Boron
C 12.01
Carbon
N 14.01
Nitrogen O 15.99
Oxygen
F 19
Fluorine
Ne 20.18
Neon
Na 22.99
Sodium
Mg 25.31
Magnesium
Al 26.98
Aluminum
Si 28.09
Silicon
P 30.97
Phosphorus
S 32.07
Sulfur
Cl 35.45
Chlorine
Ar 39.95
Argon
K 39.10
Potassium
Ca 40.08
Calcium
Sc 40.95
Scandium
Ti 47.87
Titanium
V 50.97
Vanadium
Cr 52
Chromium
Mn 54.94
Manganese
Fe 55.85
Iron
Co 58.93
Cobalt
Ni 58.69
Nickel
Cu 63.55
Copper
Zn 65.41
Zinc
In 1st 30 elements there are found many metals and gases which are very important in the chemistry. Atomic mass increase when we move from one to thirty with the exception of 2 to 3 elements.

Answer 1

H 1

Hydrogen

He 4

Helium

Li 6.94

Lithium

Be 9.01

Beryllium

B 10.81

Boron

C 12.01

Carbon

N 14.01

Nitrogen O 15.99

Oxygen

F 19

Fluorine

Ne 20.18

Neon

Na 22.99

Sodium

Mg 25.31

Magnesium

Al 26.98

Aluminum

Si 28.09

Silicon

P 30.97

Phosphorus

S 32.07

Sulfur

Cl 35.45

Chlorine

Ar 39.95

Argon

K 39.10

Potassium

Ca 40.08

Calcium

Sc 40.95

Scandium

Ti 47.87

Titanium

V 50.97

Vanadium

Cr 52

Chromium

Mn 54.94

Manganese

Fe 55.85

Iron

Co 58.93

Cobalt

Ni 58.69

Nickel

Cu 63.55

Copper

Zn 65.41

Zinc

In 1st 30 elements there are found many metals and gases which are very important in the chemistry. Atomic mass increase when we move from one to thirty with the exception of 2 to 3 elements.