MEDIUM
9th CBSE
IMPORTANT
Earn 100

Mass number of an element is 40 and it has 18 protons, number of neutrons in the atom is:

50% studentsanswered this correctly

Important Questions on Structure of the Atom

EASY
9th CBSE
IMPORTANT
Valence electrons are the electrons present in the:
EASY
9th CBSE
IMPORTANT
Maximum number of electrons, that K-shell can accommodate is:
MEDIUM
9th CBSE
IMPORTANT
Maximum number of electrons that N-shell can accommodate is:
EASY
9th CBSE
IMPORTANT
Maximum number of electrons that M-shell can accommodate is:
EASY
9th CBSE
IMPORTANT
Maximum number of electrons that L-shell can accommodate is:
EASY
9th CBSE
IMPORTANT
Maximum number of electrons that outermost shell can accommodate is:
EASY
9th CBSE
IMPORTANT
Each element tends to complete _____ electrons in its outermost shell is:
EASY
9th CBSE
IMPORTANT
If in an element first shell K is the outermost shell, it will get inert gas configuration completing _____ electrons in outermost shell: