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Which statement is wrong? (a) The atomic weight of carbon is about 12. (b) The most...

Which statement is wrong? (a) The atomic weight of carbon is about 12. (b) The most stable ion of lithium is Li+. (c) A phosphorus atom is larger than an antimony atom. (d) The radius of a sodium atom is larger than that of a sodium cation. (e) Oxygen has a less negative electron affinity than fluorine.

I KNOW THAT THE CORRECT ANSWER IS C AND I SEE WHY IT IS C... BUT CAN YOU PLEASE EXPLAIN TO ME THE THOUGHT PROCESS BEHIND WHY THE OTHER CHOICES ARE NOT WRONG & ARE RIGHT

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Answer #1

a. the atomic weight of carbon is 12

b. the most stable ion of lithium is Li+, because by loosing of an electron it will get noble gas configuration

c. phosphorous atom is smaller than antimony atom, because in groups from top to bottom atomic radius increases

d. radius of sodium atom is larger than sodium cation , because cation size is always less than neutral atom

e. oxygen has less negative electron affinity than fluorine, because in periods electron affinity increase form left to right

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