VSPER Intro

How many valence electrons did Be have originally?

• 7

• 8

• 2

• 3

Tags

NGSS.HS-PS1-1

Why would the electrons want to be so far away from each other?

• They have opposite charges. 

• They have like charges

• they want to be close

• The first electron said something mean about the other one

Tags

NGSS.MS-PS2-3

What is different from this shape than the trigonal planar shape next to it? 

• More bonds are present

• less bonds are present

• 
  

  It has a lone pair instead of a bond and atom. 

Why is the bond angle on the bent molecule less than 120 degrees?

• The lone pair of electrons is held closer to the central atom and pushes the bonds closer together

• The protons in the two Oxygen atoms become attracted to each other and pull closer together

• It feels like it

What type of geometry will this molecule have? 

• trigonal pyrimidal

• bent

• trigonal planar

• tetrahedral

Why do we call this bent instead of tetrahedral for the molecular geometry? 

• 
  

  It has more atoms on its central atom. 

• It only has two atoms attached to the central atom instead of four. 

• The have the same amount of atoms attached to the central atom. 

• It's water