18
(Atomic Number:19 minus the group number:1)
19-1=18 core electrons
2,8,8,1 , 18 core and one valence electron.
10
Potassium ion has 18 electrons.
Potassium is a non metal element. There are 19 electrons in a single atom.
Potassium has 19 protons, 19 electrons and 20 neutrons.
there are 19 protons and electrons
Oxygen has 6 core electrons.
The neutral atom of potassium has 19 electrons.
Oxygen as 2 core electrons and 6 valence electrons.
Potassium ion has 18 electrons.
Oxygen has 6 core electrons.
Germanium has 28 core electrons.
Tin has 46 core electrons.
the valency of potassium is 1
Oxygen as 2 core electrons and 6 valence electrons.
Potassium is a non metal element. There are 19 electrons in a single atom.
Potassium has 19 protons, 19 electrons and 20 neutrons.
there are 2 electrons in potassium's innermost energy level
there are 19 protons and electrons