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Question
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
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Solution
Y = 9 i.e (2, 7)
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RELATED QUESTIONS
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2,8,1 |
2,8,7 |
2,5 |
1 |
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