- 1. Chemical bonds form when atoms
A) give up neutrons
B) gain protons
C) share or transfer electrons
D) combine nuclei
- 2. A mystery substance is known to be a chemical compound. What can you infer about the substance?
A) It has a fixed composition
B) It consists of molecules
C) It is composed of just two elements
D) It forms crystals
- 3. Ionic bonds form between
A) two nonmetals
B) a metal and a nonmetal
C) any two elements
D) two metals
- 4. Which of the following is not a property of an ionic compound?
A) high boiling point
B) ability to dissolve in water
C) high melting point
D) malleability
A) all of the choices
B) chemical compound
C) ionic compound
D) nonpolar compound
- 6. All covalent compounds
A) are solid at room temperature
B) have high boiling points
C) contain ions
D) consist of nonmetallic elements
- 7. Which alloy was made first?
A) bronze
B) none of the choices
C) brass
D) steel
- 8. All chemical bonds involve two atoms sharing electrons
A) false
B) true
- 9. The 3 in NH3 is the atomic number of hydrogen
A) true
B) false
- 10. Positive ions form when atoms lose electrons
A) true
B) false
- 11. Metallic bonds are between metals and nonmetals
A) true
B) false
- 12. A unique substance that forms when elements combine chemically is a(n) ___________.
- 13. Atoms are held together by ______________.
- 14. An ionic bond forms when atoms ________ electrons.
- 15. Bonds that form between two nonmetals are called ____________.
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