Final Semestral Test

1. What geometry will this molecular structure have?: PH3

• Bent

• Linear

• Tetrahedral

• Trigonal pyramidal

What geometry will this molecular structure have?: H₂S

• Bent

• Linear

• Tetrahedral

• Trigonal pyramidal

Tags

NGSS.HS-PS1-3

What is the molecular geometry for this molecule?

• Bent

• Trigonal pyramidal

• Trigonal Planar

• 
  Linear

Choose the correct shape for this molecule:

• Bent

• Linear

• Tetrahedral

• Trigonal Planar

 A lone pair is defined as

• A pair of bonding electrons

• One non-bonding electron

• A pair of electrons on the central atom

• A pair of non-bonding electrons

How do covalent bonds form?

• By donating and receiving valence electrons between atoms.

• Sharing valence electrons between atoms

• Opposite slight charges attract each atom in the compound.

• Scientists still aren't sure.

Tags

NGSS.HS-PS1-1

Ionic bonds form between two ions that have...

• opposite charges

• ionic compounds

• positive charges

• negative charges

Tags

NGSS.HS-PS2-4

If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge?

• Al⁺¹⁰

• 
  Al⁺¹³

• Al⁺³

• Al^-10

Tags

NGSS.HS-PS1-7

if NONMETALS are more likely to GAIN electrons, they will form ...

• Cations

• Neutral atoms

• Anions

• Ions

Tags

NGSS.HS-PS1-2

____________are formed by the attraction between oppositely charged ions. They are formed between metals and non metals.

• Covalent bonds

• Chemical bonds

• Metallic bonds

• Ionic bonds