Does periodic table have hydrogen

Answer 1

Nowadays usually put in the same group as the alkali metals, group1. Hydrogen is an odd-ball elemnt. It shares no characteristics aprt from 1 electron in valence shell with the alkali metals.

Some older versions put in TWO places, with the alkali metals (group1) and with the halogens, group 17. Reasonable as H loses one electron (like a group 1) and gains one (like a halogen) when it forms the hydride ion.

Answer 2

Yes, hydrogen is the first element on the Periodic Table. It is often presented in two locations to indicate its ability to act as members of two different groups - the alkali metals (Group 1) and the halides (Group 7).

Answer 3

YES !!!!

It is element No. `1

Formally, Atomic No. 1

Atomic Mass = 1

Shown in the Periodic Table as the first element at the 'top' of the table.

Answer 4

Yes, hydrogen is the first element on the periodic table.

Answer 5

H