Question

tricky method to find atomic mass

Answer 1

Steps to fund atomic mass of weight of elements lying bewteen atomic number 1 to 20

1. Mostly all elements have atomic mass double to thier atomic number like

Hydrogen who has atomic number of 1 have mass of 1.

Helium who have atomic number of 2 have atomic mass of 4.

Note :

All don't show such phenomena and can show little very different in such formula.