MEDIUM
9th CBSE
IMPORTANT
Earn 100

A chloride ion has negative charge because it has more electrons than a neutral atom.

50% studentsanswered this correctly

Important Questions on Atoms and Molecules

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 6

Write the formula of the following compound:

Calcium oxide 

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 6

Write down the formula for the following compound:

Magnesium hydroxide

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 7
An element Z has a valency of 3. What is the formula of the oxide of Z? 
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 8
What is the name of the particle which contains 10 electrons, 11 protons and 12 neutrons?
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 9
Name the particle which has 18 electrons, 18 neutrons, and 17 protons in it.
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 10
The particle which is formed by the gain of electrons by an atom is called_____
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 10
The particle which is formed by the loss of electrons by an atom is called_____
EASY
9th CBSE
IMPORTANT
Science for Ninth class Part 2 Chemistry>Chapter 3 - Atoms and Molecules>Very Short Answer Type Questions>Q 10
The particle which is formed by the loss or gain of electrons by an atom is called _____.