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akeAssignment/takecovalentActivity do? locator assignment-take&takeAssignmentsessionLocator assignment-take Use the References important values inceded for this question. From the Lewis structures of the species given, pick all of those in which the central atom obeys the octet rule e. ..:F: None of the Above more group attempts remaining MacBook Air
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Octat rule: The octet rule refers to the tendency of atoms to have eight electrons in the valence shell, giving same electronic configuration as noble gas.

In PF5 ,  Phosphorus pentafluoride,In order to satisfy the octet rule we must have 8 electrons in valance shell. here central atom phosphorus being bonded with five fluorines. so total valence electron is 10 , hence central atom p does not obey the octet rule.

Bcl3:  in Bcl3 , the central atom Boron naturally have three valance electrons. boron being bonded with three cl atom, three bond means total six valence electrons . hence central B does not obey the octet rule.

H2se: in H2Se here cental atom se is bonded with two hydrogen and se contain two lone pair , means total 8 electrons. hence central atom se obey the octet rule .

H2co: here centat atom contain 4 bond means total 8 valence electron . hence central atom c obey the octet rule .

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