MEDIUM
9th CBSE
IMPORTANT
Earn 100

What is an electron? State its relative mass and charge.

Important Questions on Structure of Atom

EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 29
What is the absolute mass and charge of an electron?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 30
Give the evidence for the existence of a nucleus in an atom.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 31
What important information is furnished about the nucleus of an atom by the alpha particle scattering experiment of Rutherford? 
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 32
How was it shown that an atom has a lot of empty space within it?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 33
Why is an atom neutral in spite of the presence of charged particles in it?
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 34
Which of the nuclear particles is present in the same fixed number in the atoms of any particular element?
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 34
What do we call this number which is characteristic of a particular element? (Mass number/ Atomic number)
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 4 - Structure of Atom>Short Answer Type Questions>Q 35
What is a proton? State its relative mass and charge.