Covalent Bonding and Molecular Compounds Quiz

What is the primary reason atoms form covalent bonds?

• To become positively charged

• To achieve full outer energy levels

• To gain protons

• To lose electrons

How many valence electrons does a fluorine atom have before forming a covalent bond?

• 6

• 7

• 9

• 8

What type of bond is formed when two nonmetals share electrons?

• Covalent bond

• Metallic bond

• Ionic bond

• Hydrogen bond

Which of the following is a characteristic of covalent compounds?

• Form crystal structures

• High melting points

• Good electrical conductivity

• Low boiling points

What does the chemical formula of a covalent compound indicate?

• The ratio of ions present

• The actual number of atoms present

• The type of crystal structure

• The charge of the compound

What is the first question to ask when naming a compound?

• What is the charge of the compound?

• Is there a metal present?

• What is the boiling point?

• How many atoms are present?

Which prefix is used for the number 5 in naming molecular compounds?

• Tetra

• Penta

• Hexa

• Hepta

In the compound N2O5, what does the prefix 'di' indicate?

• Two nitrogen atoms

• Five oxygen atoms

• Two oxygen atoms

• Five nitrogen atoms

What is the correct name for CO?

• Monocarbon oxide

• Carbon monoxide

• Carbon oxide

• Carbon dioxide

Why is 'mono' omitted from the first element in a compound name?

• It is always included

• It is not necessary for the first element

• It is only used for metals

• It indicates a charge