Question

In which of the following does every atom has 8 electrons in its valence shell

(a) IF5 (b)C2H4 (c) SiF4 (d) KH​

Answer 1

D] is the correct answer KH

Answer 2

(c) SiF4 is the correct answer.

• In the options, C2H4 and KH, there exists hydrogen atoms.
• Hydrogen can only have two electrons in its Valence shell, thus they are wrong options.
• IF5 molecule has twelve electrons in iodine, as per Lewis structure. The molecule has square pyramidal shape.
• SiF4 has eight electrons in both silicon and flourine. The molecule has tetrahedral shape.