Lewis structures and molecule geometry

How many bonding electrons are in the Lewis structure of N₂?

• 2

• 3

• 4

• 6

Tags

NGSS.HS-PS1-2

How many valence electrons are in the nitrate ion?

• 18

• 22

• 23

• 24

Tags

NGSS.HS-PS1-1

The total number of electrons to be counted for the Lewis structure of the PO₄^3- polyatomic ion is:

• 8

• 26

• 29

• 32

Tags

NGSS.HS-PS1-1

The correct Lewis structure for BF₃ would have exactly:

• 1 double bond.

• 2 double bonds.

• 1 triple bond.

• no double bonds.

Which molecule below would have a Lewis structure that is an exception to the octet rule?

• BH₃

• NO

• SI₆

• all of these

What is the molecular geometry if you have 4 single bonds around the central atom and no lone pairs?

• bent

• linear

• tetrahedral

• trigonal pyramidal

What is the molecular geometry of carbon dioxide, CO₂?

• bent

• linear

• tetrahedral

• trigonal pyramidal

What is the molecular geometry of SiH₄?

• bent

• linear

• tetrahedral

• trigonal pyramidal

What is the molecular geometry of CCl₄?

• bent

• linear

• tetrahedral

• trigonal pyramidal

Tags

NGSS.HS-PS2-6

What is the angle between electron groups in the trigonal planar geometry?

• 90°

• 109.5°

• 120°

• 180°