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Basic Chemistry Practice Test: Basic Concepts of Chemical Bonding
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Chemical bonding is the process by which atoms are held together in chemical compounds. The three main types of chemical bonds are: Covalent bonds: Atoms share electrons to reach the octet state. This type of bonding often occurs between nonmetals from the right side of the periodic table. Ionic bonds: Form between ions with opposite charges, such as between a metal and a nonmetal. Ionic bonds are formed by the transfer of electrons between atoms/molecules. They are the basis for many materials, including plastics and glasses. Metallic bonds: Occur in metals, where electrons are shared... Show more
Basic Chemistry Practice Test: Basic Concepts of Chemical Bonding
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25 Questions

1. A nonpolar bond will form between two __________ atoms of __________ electronegativity.
2. The central atom in __________ violates the octet rule.
3. Of the following, __________ cannot accommodate more than an octet of electrons.
4. How many unpaired electrons are there in the Lewis structures of a N3- ion?
5. The ion NO- has __________ valence electrons.
6. The Lewis structure of PF3 shows that the central phosphorus atom has __________ nonbonding and__________ bonding electron pairs.
7. Which of the following would have to lose two electrons in order to achieve a noble gas electron configuration __________?
O Sr Na Se Br
8. The chloride of which of the following metals should have the greatest lattice energy?
9. The Lewis structure of the 2- CO3 ion is __________.
10. Most explosives are compounds that decompose rapidly to produce __________ products and a great deal of __________.
11. The formal charge on sulfur in 2- SO4 is __________, where the Lewis structure of the ion is:
12. How many equivalent resonance forms can be drawn for SO2 without expanding octet on the sulfur atom (sulfur is the central atom)?
13. Of the bonds below, __________ is the least polar.
14. The halogens, alkali metals, and alkaline earth metals have __________ valence electrons, respectively.
15. Which ion below has a noble gas electron configuration?
16. The formal charge on nitrogen in NO3 - is __________.
17. There are __________ paired and __________ unpaired electrons in the Lewis symbol for a phosphorus atom.
18. Which two bonds are most similar in polarity?
19. In the Lewis structure of ClF, the formal charge on Cl is __________ and the formal charge on F is __________.
20. In which of the molecules below is the carbon-carbon distance the shortest?
21. Which of the following would have to gain two electrons in order to achieve a noble gas electron configuration __________?
O Sr Na Se Br
22. How many single covalent bonds must a silicon atom form to have a complete octet in its valence shell?
23. Of the possible bonds between carbon atoms (single, double, and triple), __________.
24. The type of compound that is most likely to contain a covalent bond is __________.
25. How many equivalent resonance structures can be drawn for the molecule of SO3 without having to violate the octet rule on the sulfur atom?