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if the electrons are in the valence band they jump to the conduction band they required the energy .which formula may i use
In which groups do all the
elements have the same number of valence electrons? [A] Ag, Cd, Ar [B] P, S, Cl [C] None [D] P, As, Se [E] Na, Ca, Ba
Using valence bond approach, account for the stability of the following alkenes: 2,5-dimethylhex-3-ene, 2,3-dimethyl-2-butene, 3,4-diethylhex-3-ene, 3,4-dipropylhex-3-ene?
All halogens have the following number of valence electrons: [A] 7 [B] 2 [C] 3 [D] 5 [E] None of these
Of the following
elements, which needs three electrons to complete its valence shell? [A] Cl [B] Ba [C]Ca [D] Si [E]P
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