Physical Science Unit 7 Test Review

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Number of C's in 2Na₂CO₃

• 1
• 2
• 3
• 5

How many Aluminum are in Al₂O₃?

• 3
• 2
• 5

What is an example of an element that doesn't like to bond?

• Neon
• Oxygen
• Hydrogen
• Selenium

The formula of sodium sulfate is Na₂SO₄. How many elements does it contain?

• 2
• 3
• 4
• 7

What is the kind of bond between two non metals called?

• Ionic
• Covalent
• Lattice
• Metallic

What is the name given to the electrons in the highest occupied energy level of an atom?

• cations
• anions
• orbital electrons
• valence electrons

Which of the follow occurs in an ionic bond?

• Like-charged ions attract
• 2 atoms share electrons
• 2 atoms share 2 electrons
• Oppositely charged ions attract

A covalent bond is formed between

• nonmetal and nonmetal
• metal and metal
• cation and anion
• metal and nonmetal

Which of the following is true of ionic bonds?

• Electrons are completely transferred during bonding
• Electrons are shared during bonding
• Electrons are not involved with bonding
• All of the above