Question

1. Answer the following.
a. What is the difference in the atomic
models of Thomson and Rutherford?
b. What is meant by Valency of an element?
What is the relationship between the
number of valence electron and valency?
c. What is meant by atomic mass
number ? Explain how the atomic
number and mass number of carbon are
6 and 12 respectively.
d. What is meant by subatomic
particle ? Give brief information of three
subatomic particles with reference to
electrical charge, mass and location.
2. Give scientific​

Answer 1

Answer:

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