EASY
7th ICSE
IMPORTANT
Earn 100

The diagram shows an atom of boron. What are the proton number and nucleon number of boron?

Question Image

Important Questions on Atomic Structure

HARD
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 1
Write the electronic configuration of calcium, phosphorus and magnesium.
HARD
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 2
State the main structure of an atom. 
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 3
How can you say that atoms are stable? 
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 4
Argon has atomic number 18 and mass number 40. Find the number of electrons, protons and neutrons. 
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 5
Which particle of an atom is electrically neutral?
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 6
Write the atomicity of the following: Ozone
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 6
Write the atomicity of the following: Bromine
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 5 - Atomic Structure>ASSESS YOURSELF>Q 6
Write the atomicity of the following: Sulphur