Chemistry Unit

Elements on the LEFT side of the periodic table will most likely form:

• Positive ions
• Negative ions
• Neutral Ions
• None of these

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer

Which type of bond has an equal sharing of electrons?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

Which type of bond has an unequal sharing of electrons?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

Bonds that form between two metals are called ______________ bonds.

• ionic 
• covalent
• metallic
• pervasive

Which of the following is an example of an IONIC COMPOUND?

• NaCl
• H₂O
• CO₂
• NO

Which of the following is an example of a COVALENT COMPOUND?

• H₂S
• KI
• CaCl₂
• MgO

What is the chemical name for the compound with the formula Na₂S?

• sodium sulfide
• sodium fluoride
• magnesium sulfide
• lithium oxide

What is the name of PS₃?

• phosphorus trisulfide
• phosphorus chloride
• phosphide trisulfide
• phosphate

The bonds in Na₂O are best described as 

• a.  covalent, because valence electrons are shared.
• covalent, because valence electrons are transferred
• ionic, because valance electrons are shared.
• ionic, because valance electrons are transferred. 

Tags

NGSS.HS-PS1-3