savina18
Answered

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The atom of an element S has a mass number of 88 and contains in its nucleus 12 neutrons more than protons. What is the electronic structure:
a) of the atom
b) The S2 + ion that it forms

Sagot :

Answer:

Explanation:

Mass number = No of neutrons + no of protons

Let no of protons be p , No of neutrons = p + 12

Putting the given values

88 = p + 12 + p

76 = 2p

p = 38

n = 50

a ) Atom is Strontium ( Sr )

Electronic configuration

1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶5s²

b ) Sr²⁺

1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶

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