Covalent Bonding Review

A covalent bond...

• is when electrons are transferred between atoms

• is when an electron is lost from an atom

• is when an electron is shared by 2 atoms

• is a shared pair of electrons between 2 atoms

Tags

NGSS.HS-PS1-1

Covalent bonds are formed between...

• 2 non-metals

• a metal and a non-metal

• 2 metals

• 2 ions

Tags

NGSS.HS-PS1-1

Oxygen has 6 electrons in it's outer shell. How many covalent bonds does it need to make to complete it's outer shell electrons?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Nitrogen has (a)   valence electrons, which means it has ​ (b)   bonding places to make covalent bonds with other nonmetals

• 5

• 3

• 1

• 2

• 4

• 6

• 8

• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Elements need ​​ ​ (a)   valence electrons to become stable when they form compounds, except for hydrogen, which only needs ​ (b)  

• 8

• 2

• 1

• 3

• 4

• 5

• 6

• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Match the following

• Single Bond

• Two shared pairs of electrons

• Double Bond

• Three shared pairs of electrons

• Triple Bond

• One shared pair of electrons

How many electrons are involved in a double bond?

• One pair of electrons

• Two pairs of electrons

• 6 electrons

• 8 electrons

Which of these is not a covalent molecule?

• MgO

• CO₂

• HCl

• CH₄

Tags

NGSS.HS-PS1-1

Chlorine has 7 electrons in it's outer shell. How many covalent bonds does it need to make to complete it's outer shell electrons?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

What is the correct formula for this molecule?

• CH

• C₁H⁴

• CH₄

• C₄H

Tags

NGSS.MS-PS1-1