Ch6 Test Review (Covalent Compounds)

Which will NOT form a diatomic molecule?

• fluorine
• nitrogen
• bromine
• boron

Which type of bond has one pair of electrons shared between atoms?

• single covalent
• double covalent
• triple covalent
• ionic

How many bonds can carbon form?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-2

How many bonds can halogens form?

• 1
• 2
• 3
• 4

Covalent compounds display which of these properties?

• They are hard, brittle solids.
• They have high melting and boiling points.
• They display luster.
• They are usually insoluble in water.

Which of these elements does NOT exist as a diatomic molecule?

• Ne
• F
• H
• I

Which of the following elements can form diatomic molecules held together by triple covalent bonds?

• carbon
• oxygen
• nitrogen
• fluorine

A molecule is formed when two or more atoms form a covalent bond. According to this definition, which of these is NOT a molecule?

• NaCl
• H₂
• HCl
• NH₃

Which element can share only one pair of electrons?

• C
• H
• O
• N

In forming a molecular structure, each atom should have ___ electrons around it unless there is some specific reason why this cannot be achieved.

• 2
• 4
• 6
• 8