MEDIUM
9th Telangana Board
IMPORTANT
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The electronic configuration of Sodium is

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Important Questions on What is inside the Atom?

MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Think and discuss
An atom is electrically neutral. But the electrons present in it are negatively charged particles. If only negative charges were present, the atom would not be neutral. Then, why are atoms considered to be neutral?
HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Think and discuss>Compare Rutherford and Thomson's models of the atom on the following basis

Compare Rutherford and Thomson's models of the atom on the following basis: Where is the positive charge placed?

HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Think and discuss>Compare Rutherford and Thomson's models of the atom on the following basis

Compare Rutherford and Thomson's models of the atom on the following basis:

How are the electrons placed?

HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Think and discuss>Compare Rutherford and Thomson's models of the atom on the following basis

Compare Rutherford and Thomson's models of the atom on the following basis: Are electrons stationary inside the atom or moving?

HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Think and discuss>Q 1
Phosphorus and sulphur show multiple valency. Why some elements show multiple valency?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Let us Improve our learning>Q 1
What are the three subatomic particles?
HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Let us Improve our learning>Q 2
What were the three major observations Rutherford made in the gold foil experiment?
HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 9 - What is inside the Atom?>Let us Improve our learning>Q 3
Give the main postulates of Bohr's model of an atom.