EASY
9th CBSE
IMPORTANT
Earn 100

Name the three sub-atomic particles of an atom.

Important Questions on Structure of the Atom

EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 2
Helium atom has an atomic mass of 4u and two protons in its nucleus. How many neutrons does it have?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 1
Write the distribution of electrons in Carbon and Sodium atoms.
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 2
If K and L shell of an atom is full, then what would be the total number of electrons in the atom?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 1
How will you find the valency of chlorine, sulphur and magnesium?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 1
If number of electrons in an atom is 8 and number of protons is also 8, then what is the atomic number of the atom? 
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 1
If number of electrons in an atom is 8 and number of protons is also 8, then what is the charge on the atom?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 2

With the help of below table, find out the mass number of oxygen and sulphur atom.

Question Image

MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 4 - Structure of the Atom>Questions>Q 1
For the symbol H, D and T tabulate three subatomic particles found in each of them.