MEDIUM
9th CBSE
IMPORTANT
Earn 100

Identify the isotopic pair(s) out of the following species?

Important Questions on Structure of the Atom
EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT

MEDIUM
9th CBSE
IMPORTANT
The number of electrons in an element is and the number of neutrons is Which of the following is the correct representation of the element?

MEDIUM
9th CBSE
IMPORTANT
Assertion: The valency of an atom of fluorine is
Reason: The number of electrons present in the outermost shell of an atom is known as the valence electrons.
Mark the correct choice as:
