Hydrogen has only one electron. Just the one. And it is a valence electron.
In the normal, unionized ground state it has 1 total electron (meaning 1 valence electron as well).
1. Hydrogen is in group 1, the leftmost column, so it should have 1 valence electron.
There is one valence electron
Hydrogen has only one valence electron.
One
1
2
By looking at the group number you can tell how many valance electrons there are ex: Group 1= 1 valance electrons Group 2-12= 2 valance electrons Group 13= 3 valance electrons Group 14= 4 valance electrons Group 15= 5 valance electrons Group 16= 6 valance electrons Group 17= 7 valance electrons Group 18= 8 valance electrons
5
Hydrogen has one shell with only 1 electron on the valance shell.
6 Use the periodic table as a guide. As you go across from left to right the number of valence electrons increases. H = 1 Be = 2 B = 3 C = 4 N = 5 O = 6 F = 7 This trend stays the same all the way down each column. Usually periodic tables are marked on the top with roman numerals or something to signify how many valence electrons each element has.
Valance electrons means that the element has not reached the octet configuration and is therefore reactive the reactivity depends on the no. of valance electrons the more valance electrons the more unstable the atom is and the more reactive it is.The gasses like helium neon xenon are all inert which means they have an octet configuration and have no delocalised or valance electrons.
1
2 valance electrons
There are 27 valance electrons.
Iodine has 7 valance electrons
By looking at the group number you can tell how many valance electrons there are ex: Group 1= 1 valance electrons Group 2-12= 2 valance electrons Group 13= 3 valance electrons Group 14= 4 valance electrons Group 15= 5 valance electrons Group 16= 6 valance electrons Group 17= 7 valance electrons Group 18= 8 valance electrons
They have different numbers of valance electrons
6 valence electrons
6 valence electrons
1
three
there are six
18