EASY
8th ICSE
IMPORTANT
Earn 100

Define the term atomic number.

Important Questions on Atomic Structure

EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q E
Define the term mass number of an atom.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q E
Define the term isotope.
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q F
Write the fundamental particles of an atom. Describe each particle in one line.
 
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q F
What is the atomic number? Write the atomic number of the first five elements of the periodic table. Also, name the elements.
EASY
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q F
What is atomic mass?
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q F
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. Write down its atomic number and its mass number.
 
HARD
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q F
Draw the diagrams representing the atomic structure of the following:
Sodium atom (Atomic number 11; Mass No. 23)
 
MEDIUM
8th ICSE
IMPORTANT
Its All About Science - Chemistry>Chapter 4 - Atomic Structure>Exercise>Q F

Draw the diagrams representing the atomic structure of the following:

Chlorine atom (Atomic number 17; Mass No. 35).