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Modern Periodic Law

a Atomic numb...

Question

Question 44 (a)
Atomic number of a few elements are given below 10, 20, 7, 14. Identify the elements.

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Solution

Neon has atomic number 10.

Calcium has atomic number 20.

Nitrogen has atomic number 7.

Silicon has atomic number 14.

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Q. Question 44 (b)
Atomic number of a few elements are given below 10, 20, 7, 14. Identify the group number of these elements in the Periodic Table

Q. Question 44 (c)
Atomic number of a few elements are given below 10, 20, 7, 14. Identify the periods of these elements in the Periodic Table.

Q. Question 44 (e)
Atomic number of a few elements are given below 10, 20, 7, 14. Determine the valency of these elements.

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Q. The atomic number of a few elements are given below:
(i) 10
(ii) 20
(iii) 7
(iv) 14

Identify the elements.

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