Molecular Geometry

How many bonds are around Be?

• 4

• 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Pairs of electrons ____________ each other.

• repel

• attract

What is a covalent bond?

• Bond formed when electrons are transferred from one atom to the other.

• Bond formed when electrons are shared

• Bonds formed by a sea of electrons surrounding positively charged nuclei.

Tags

NGSS.HS-PS1-1

What is the shape of BeCl₂?

• Bent

• Linear

• Tetrahedral

• Trigonal Planar

How many bonds  around the central atom should  a linear molecule have?

• 1

• 3

• 2

what is the shape of CO2 molecule?

• bent

• Linear

Despite having double bonds and not just a single bond.  CO₂ has ______ bond angle.

• 104.5^o

• 120^o

• 180^o

What is the shape of HCN?

• bent

• Linear

Boron is a "rule breaker."  Boron forms three bonds because it only has _____ valence electrons.

• 2

• 1

• 3

• 4

Tags

NGSS.HS-PS1-1

How many bonds and lone pairs are around Boron(central atom)? 

• 3 bonds, 0 lone pairs

• 2 bonds, 1 lone pair