The number of valence shell electrons in an atom with atomic number 26 is
8
3
5
6
2, 8, 8, 8
(a) What are valence electrons? Where are valence electrons situated in an atom ?
(b) What is the number of valence electrons in the atoms of an element having atomic number 13 ? Name the valence shell of this atom.
Atomic number of an element is 42. Find out the number of electrons present in the valence shell.
The number of electrons present in the valence shell of an atom with an atomic number 38 is