MEDIUM
9th ICSE
IMPORTANT
Earn 100

Draw the diagram representing the atomic structure of the oxide ion.

Important Questions on Atomic Structure and Chemical Bonding

MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(C)>Q 9
Define the term anion.
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(C)>Q 18

Complete the following table relating to the atomic structure of some elements:

  No.of protons  No.of electrons No.of neutrons Atomic number Mass number
Cl1735          
Cl1737          
EASY
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(C)>Q 19

Name the metal with 2 valency.

HARD
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(C)>Q 20
Give reasons: 'Argon does not react'.
EASY
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(C)>Q 20
Give reasons
Why the actual atomic mass is greater than mass number?
MEDIUM
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(D)>Q 4
An atom X has three electrons more than the noble gas configuration. What type of ion will it form?
EASY
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(D)>Q 6

What type of compounds are usually formed between metals and non-metals and why?

EASY
9th ICSE
IMPORTANT
Concise Chemistry Class 9>Chapter 4 - Atomic Structure and Chemical Bonding>EXERCISE 4(D)>Q 10

Compare chlorine atom and chloride ion, with respect to their electrical state.