Please provide me with a right answer and clear handwriting. Thanks myUK Univers

Question

Please provide me with a right answer and clear handwriting. Thanks

myUK University ofK G Sign In O Chase Online d. UnitedHealthcare Stu Sapling Learning I Loc REEF Education Cou mara O 3/12/2017 11:55 PM CA 31.2/100 3/9/2017 07:56 PM Gradebook As e Print A Calculator Periodic Table Avai Question 10 of 14 Due Map Sapling Learning Poin Grad For each of the following atoms, select the number of electrons the atom needs to gain or lose to be consistent with the octet rule Des Magnesium (Mg) Select answer a gain 3 electrons romine (Br) Select answer Polic gain 2 electrons You gain 1 electron already has an octet lose 1 electron You lose 2 electrons up o lose 3 electrons You you xenon (Xe) Select answer Nitrogen (N) Select answer You n yo anSV O He O W Te Hint O Previous ® Give Up & View Solution Check Answer 0 Next HExi

Explanation / Answer

Mg = [Ne] 3s2

Mg needs to loose 2 electron for octet rule. ( Mg2+ obeys octet rule) . Mg2+ = [He] 2s2 2p6

Br = [Ar] 3d10 4s2 4p5

Br  needs to gain 1 electron for octet rule. ( Br- obeys octet rule). Br- = [Ar] 3d104s2 4p6

N = [He] 2s2 2p3

N  needs to gain 3 electron for octet rule. ( N3- obeys octet rule). N3- = [He] 2s2 2p6

Xn = [Kr] 4d105s2 5p6

Xn needs to gain/loose 0 electron for octet rule. ( Xn already obeys octet rule)

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