Question

1. Check the statements are True/ False.
a. Solid particles can slide but cannot leave the matter.
b. Energy present in particles of matter due to their motion is called kinetic energy.
c. In plum pudding model, positions of electrons are shown around the sphere of positive
charge.
d. Orbits around the nucleus possess definite energy levels.
e. It is not always necessary for electrons to fill the previous orbit before going to the next
orbit.
f. Mass number is written as the subscript with the symbol of atom in the standard form
of the notation.
g. Number of electron present in the outermost orbit of Calcium (Z=20) is 8.
h. Symbol of Chromium is Co.
i. Atomicity o Phosphorous is 8.
j. Valency of hydroxide radical is 1.

Answer 1

• Answer:
• t
• t
• t
• f
• t
• f
• f
• t
• t
• f
• f
• f
• f
• t

Explanation:

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Explanation:

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Answer 2

Answer:

1.false

2. true

3.false

4.true

5.true

6.true

7. false

8.false

9.true

10.true....

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