EASY
9th CBSE
IMPORTANT
Earn 100

Define neutron.

Important Questions on Structure of the Atom

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 25
What is the mass and charge of a neutron ?
HARD
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 26
What are the symbols used to represent different orbits? Arrange them in order of increasing energy.
EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 27

When does an electron become excited?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 28

Define an atomic number of an element. Give one example.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 29

Define the mass number of an element. Give one example.

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 30

What are nucleons? What is their number called?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 31

How are atomic number and mass number represent the symbol of the element?

EASY
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 4 - Structure of the Atom>Exercise>Q 32
What do the superscripts and subscripts in three different atoms of hydrogen H11,H12 and H13 represent?