Covalent Bonding

Each of the following are joined by a covalent bond EXCEPT? (hint: think about what type of elements can make covalent bonds)

• K and O

• C and S

• B and F

• N and Cl

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The elements in which of the following groups satisfy the octet rule without forming compounds?

• transition metals

• alkali metals

• halogens

• noble gases

Tags

NGSS.HS-PS1-1

Identify the type of covalent bond present between the two oxygen atoms pictured above.

• triple bond

• single bond

• double bond

• three single bonds

How many total valence electrons are NOT involved in chemical bonding in the Lewis dot structure pictured above?

• 6

• 3

• 4

• 2

Tags

NGSS.HS-PS1-2

Which of the following elements occurs naturally as a diatomic molecule with a double covalent bond? (hint: draw Lewis dot structures for answer ALL choices)

• nitrogen

• oxygen

• hydrogen

• chlorine

How many TOTAL sets of lone pairs are present in the molecule above?

• 4

• 8

• 2

• 1

Tags

NGSS.HS-PS1-3

How many total valence electrons are participating in bonding in the molecule above?

• 8

• 4

• 2

• 3

Tags

NGSS.HS-PS1-2

Identify the type(s) of covalent bonds present if one carbon and two oxygen atoms bonded together? (hint: draw Lewis dot structure)

• two single bonds

• two double bonds

• two triple bonds

• one single bond and one double

Which of the following is NOT formed by a covalent bond?

• K₂S

• I₂

• H₂O

• CO₂

In CO₂, how many UNSHARED pairs of electrons does each oxygen have?

• 2

• 4

• 1

• 6