Question

Write the symbol of first 20 elements with atomic number and atomic mass

Answer 1

HEY MATE

HERE IS YOUR ANSWER

With atomic number and atomic mass

H

He

Li

B

Be

C

N

O

F

Ne

Na

Mg

Al

Si

p

Cl

Ar

K

Ca

HOPE IT HELPS

HAVE A NICE DAY AHEAD.....^ _ ^

Answer 2

H

Hi

Li

B

Be

C

N

O

F

Ne

Na

Mg

Al

Si

P

S

Cl

Ar

K

Ca