CHEM Unit 5: Bonding/Nomenclature Test

The chemical bond formed when two atoms share electrons is called a(n)

• covalent bond
• ionic bond
• metallic bond
• electron bond

Did you turn in the paper portion of the test?

• Yes
• No

Which element is most likely to gain electrons in a chemical bond?

• Kr
• K
• Br
• Ca

How does an atom of aluminum become an ion?

• It gains 3 electrons
• It gains 3 protons
• It loses 3 electrons
• It loses 3 protons

How many electrons are shared within a single bond?

• 0
• 1
• 2
• 4

Which atoms are most likely to form covalent bonds?

• metals atoms that share electrons
• metals atoms that share protons
• nonmetals atoms that share electrons
• nonmetals atoms that share protons

The electrons that are lost, gained, or shared in chemical bonds are called ________________.

• valence electrons
• chemical electrons
• Lewis electrons
• none of the above

Which of the following is NOT an example of covalent bonding?

• H2O
• NaF
• NH3
• O2

Which process is taking place in the diagram bonding?

• Electron transfer
• Electron sharing
• Electron gain
• Electron loss

Which of the following is an example of a molecule?

• H20
• NaF
• Mg3N2
• all of the above are molecules