Question

Q.13)What is isotones? Write electronic configuration of a) 17Cl b)27Co c)29Cu​

Answer 1

Answer:

Since all the isotopes of an element have identical electronic configuration containing the same number of Valence Electrons therefore all the isotopes of an element show identical chemical properties.. Isobars: Atoms of different elements with atomic number for the same mass number are called isobars.

Answer 2

Answer:

Isotones are atomic species that share the same number of neutrons, and differ in the number of protons. Examples of isotones include carbon-12, nitrogen-13 and oxygen-14. In These atoms all have six neutrons and six, seven and eight protons respectively.

Electronic configuration

a) Cl- 1s2 2s2 2p6 3s2 3p5

b)Co- [Ar] 3d7 4s2

c) Cu-[Ar] 3d10 4s1 (completely filled more stable so one electron will shift to 3d orbital to attain more stability from 4s)

In terms of K,L,M,N shells configuration will be:

a)Cl- 2,8,7

b) Co- 2,8,15,2

c) Cu-2,8,18,1

Explanation:

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