Question

What statement is conveyed by the statement that the mass no of magnesium is 24 and atomic no is 12

Answer 1

this statement tell us that the atomic mass of magnesium is 24.3u and the atomic number of magnesium is 12 ...

by atomic number we can identify the period number ..group number .. electronic configuration and valency if magnesium ...

electronic configuration : 2 , 8 , 2

group num : 2

period num : 3

valency :2

no of electron : 12