Unit 4: Chemical Bonds

What is the electrical charge of a cation?

• positive charge

• no charge

• negative charge

• none of the above

Ions form when atoms gain or lose .

• protons

• neutrons

• electrons

• atomic number

Which element, when combined with fluorine, would most likely form an ionic compound?

• lithium

• carbon

• phosphorus

• chlorine

• none of these

An ionic compound is .

• made when electrons are transferred between atoms.

• typically formed between a metal and a nonmetal

• formed by alternating positive and negative charges

• all of the above

What type of bond is formed when atoms come together to share electrons?

• Ionic Bond

• Covalent Bond

• Family Bond

• Helping Bond

What type of bond is formed when atoms transfer electrons?

• Ionic Bond

• Covalent Bond

• Losing Bond

• James Bond

The diagrams above show one way of thinking about and representing the structure of atoms.

Which element would give up two electrons in forming an ionic bond?

• element a

• element b

• element c

• element d

When cations and anions join, they form what kind of chemical bond?

• ionic

• hydrogen

• metallic

• covalent

Which of the following formulas represents a compound held together by covalent bonds?

• ZnO

• Xe

• SO₂

• BeF₂

• Mg₃N₂

Which of the following occurs in a covalent bond (molecular compound)?

• two atoms transfer electrons

• two atoms share electrons

• the elements are metal and nonmetal

• unlike-charged ions attract