Question

atomic mases of the first 18 elements?​

Answer 1

Answer:

H-1.008

He-4.0026

Li-6.95

Be-9.0122

B-10.81

C-12.011

N-14.007

O-15.999/16

F-18.998

Ne-20.180

Na-22.990

Mg-24.305

Al-26.982

Si-28.085

P-30.974

S-32.06

Cl-35.45

Ar-39.948

hope you get it see I have provided you the detailed weight but for exam purpose just double the atomic no. for atomic mass except H and Cl

Answer 2

M not sure plz check the periodic table on google it might hel...plz mark me as a brainliest, pleeese