a) (ns)1, b) (ns)1(np)1 c) (np)1(n+1p)1 and d) (np)2
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54. Which outer electron configurations would you expect to belong to a noble gas? To a metalloid? a. ns? b. ns np c. nsnp5 d. ns²np2
Write a general valence electron configuration for main groups 6 and 7 on the periodic table (hint use n to represent the energy level i.e ns^x, np^y) define electron affinity and explain why the energy in group 7 is more exothermic then group 7 when determining electron affinity.