Video solusi : DATA NOMOR ATOM BEBERAPA UNSUR
Atomic number Name of Element Symbols of element
1 underline{ { Hydrogen )) H
2 underline{ { Helium )) He
3 underline{ { Lithium )) Li
4 underline{ { Beryllium )) Be
5 underline{ { Carbon )) B
{6) underline{ { Nitrogen )) C )
7 underline{ { Fluorine )) O
{8) underline{ { Neon )) Fe
9
Mengapa terdapat keteraturan nomor atom didalam tabel diatas ?