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Questions Answer
38 Which ion in the ground state has the same electron configuration as an atom of neon in the ground state? (1) Ca2+ (2) Cl- (3) Li+ (4) O2-
Answers
4
1
1
Answer:
K=-2.5
Explanation:
the line is in the middle of 2 and 3 and is below which means that it is negative
Answer:
√15
Explanation:
Given,
AC=B=7,
BC=H=8,
AB=P=?
Now,
By using Pythagoras theorem,we have

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