4.Which of the following elements loses two electrons in order to attain inert gas configuration similar to argon? (a)Mg. (b) Na. (c) Ca. (d) S
Answers
Answered by
1
Explanation:
Correct option is
D
Ca
Ca ([Ar]4s
2
) can lose two electrons to attain the configuration of argon.
Mg ([Ne]3s
2
) can lose two electrons to attain the configuration of neon.
Br ([Ar]3d
10
4s
2
4p
5
) can gain one electron to attain the configuration of krypton.
S ([Ne]3s
2
3p
4
) can gain two electrons to attain the configuration of argon.
Answered by
1
Answer:
correct answer is option a.mg
Explanation:
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