MEDIUM
9th CBSE
IMPORTANT
Earn 100

Give the three applications of isotopes.

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

EASY
9th CBSE
IMPORTANT

MEDIUM
9th CBSE
IMPORTANT
How can we calculate the valency of an element? The atomic number of an element is . Write down its electronic configuration.

EASY
9th CBSE
IMPORTANT
The atomic number of an element is . What will be its valency?

EASY
9th CBSE
IMPORTANT
The nucleus of an atom has protons and neutrons. Calculate its atomic number.

EASY
9th CBSE
IMPORTANT
The nucleus of an atom has protons and neutrons. Calculate its mass number.

EASY
9th CBSE
IMPORTANT
The nucleus of an atom has protons and neutrons. Calculate the number of electrons.

EASY
9th CBSE
IMPORTANT
The nucleus of an atom has protons and neutrons. Calculate the number of valence electrons per atom of this element.
