CVEN 306 HW 1

CVEN 306 HW 1 - when two elements share an electron....

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Homework 1 2.7 P 5+ ) 1s 2 2s 2 2p 6 P 3- ) 1s 2 2s 2 2p 6 3s 2 3p 6 Sn 4+ ) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 Se 2- ) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 I - ) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s 2 5p 6 Ni 2+ ) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 8 2.8) Argon(K + ) and Xenon(I - ) 2.12) a) 4f b) 5f 2.14) r 0 =(A/nB) 1/(1-n) E 0 =-A/(a/nB) 1/(1-n) +B/(A/nB) n/1(1-n) 2.18) a) Ionic bonding is always between a metal and a nonmetal because metallic elements give up their valence electrons to nonmetallic elements easily. Covalent bonds however do not have to be between metals and nonmetals and are formed
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Unformatted text preview: when two elements share an electron. Finally metallic bonding is between metals and their alloys. In metallic bonds the valence electrons of the metal are not bound to any atom but roam around the positively charge ion cores formed by the bond. b) Two electrons in the same atom cant have the same quantum number. 2.21) Si, 4 Br, 1 N, 3 S, 2 Ne, 0...
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