Question

Anyone answer this question first will get 20 points

Answer 1

Answer:

1. CATION:- B
2. ANION:-A
3. PAIR OF ISOTOPES:- D,E
4. NOBLE GAS:- C

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Answer 2

Answer:

The torsion constant has units of N-m/rad in the SI system. In order to measure the torsion constant by static means, we clamp one end of the rod in a fixed support, and attach the other end of the rod to a wheel of radius R, whose axis of rotation is horizonta