What is the Lewis dot structure for the following sif4 c2h6 mgh2 lih bh3?

Answer 1

.....H

.....|

H- Si - H

.....|

.....H

SiH4

This is tough to draw without special characters to work with. Disregard the dots in the diagram. It was necessary to put those in there only so the H bonds would line up correctly.

Basically Si has four valence electrons so single bonds extend out from it in the shape of a cross around Si in the center. There is one H atom at the other end of each single paired bond coming from the Si atom. This arrangement gives Si a stable octet of eight shared electrons. The H atoms are stable sharing 2 electrons each. I hope that helps.

Answer 2

h h

: :

h:c:c:h

: :

h h

h:b:h

:

h

Answer 3

H

••

H: B :H

••

H

and the Central boron atom will have a -1 formal charge

Answer 4

What is Lewis structure for mgh2