MEDIUM
9th CBSE
IMPORTANT
Earn 100

How does a proton differ from an electron? 

Important Questions on Structure of Atom

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 38
State two observations which show that atom is not indivisible.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 39
All the gases form cathode rays and anode rays when electricity is passed through them: What does the formation of cathode rays tell us about the atoms?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 39
All the gases form cathode rays and anode rays when electricity is passed through them:  What does the formation of anode rays tell us about the atoms? 
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 40
What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (Atomic Number= 8).
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 41
An element has an atomic number 12. How many electrons will be present in the K, L and M energy shells of its atom?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 42
What is the nucleus of an atom and what is the nature of a charge on it? 
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 42
Name the scientist who discovered the nucleus of atom. (Ernest Rutherford/ James Chadwick)
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 43
Name the particles used by Rutherford in his experiment on the discovery of the nucleus. Also, state the charge on these particles.