Question

Lithium Sodium and potassium from a Dobereners traid the atomic masses of Lithium and potassium are 7 and 39 respectively predict the atomic mass of sodium

Answer 1

mass of sodium = 39+7/2
= 46/2
= 23
mass of sodium = 23

Answer 2

Answer:

23

Explanation:

Atomic mass of Na

= 7+39/2

= 46/2

= 23