1 Hydrogen 1s1
2 Helium 1s2
3 Lithium 2s1
Nuclear energy comes from splitting of Barium atom to form Krypton atom
Yes they do if that was your question
The rows in the top third - This group consists of elements like Sodium, Magnesium, Potassium and Calcium on the right and Chlorine, Carbon, Nitrogen and Oxygen on the left.
Sodium and Chlorine are components of salt, a very important compound of our blood, essential for transferring electrical signals from the brain to the rest of the body and vice versa. Calcium is the building block of our bones, while Magnesium and potassium ensure proper functioning of our organs.
