Covalent Review #2 (Naming, diatomic & properties)

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is a valence electron?

• an electron that is found in the outermost shell of an atom.

• an electron found in the innermost shell of an atom.

• an electron found in the middle shell.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why do all bonds form?

• so the number of protons equals the number of electrons

• so an atom can become unstable

• to fill the outermost energy level

Tags

NGSS.HS-PS1-1

Where are the nonmetals located on the periodic table in this picture? 

• Blue
• Red
• Green

Where are metals located on the periodic table in this picture?

• Blue
• Green
• Red

Is hydrogen considered a metal or a non-metal?

• A metal
• Nonmetal
• Metalloid

Covalent bonds can be found as _______?

• only solids

• solids and liquids

• solids, liquids and gases

What is a property of covalent bonds?

• They cannot be dissolved in water.

• They have a high melting point

• They are orange

In Cl₂, the 2 is known as

• the subscript.
• the coefficient.
• the molecular mass.
• the number of protons.