THE ANSWER OF CHEMICAL BONDING QUIZ X Part I

1.lewis structure of an atom shows ....
Answer : b.electrons in the outermost shell
2.How many dots are to be around Ne in its Lewis structure?
Answer (e.8)
3.Which element attains the structure of a noble gas when it becomes a 2+ ion? Answer : b.Ba
4.Which element attains the structure of a noble gas when it becomes a l+ ion?
Answer : a.K
5.How many dots would the electron dot-diagram of Mg2+ have?
Answer (b.2)
6.Which of the following atoms has the greatest tendency to attract electrons?
Answer : e.bromine
7.The distribution of charge is determined by the use of ….
Answer : e.valence shells
8.What do the following have in common? 20Ne 19F- 24Mg2+
Answer : d.They are isoelectronic with each other.
9.When bromine gains one electron it ….
Answer : b.becomes a negative ion with a larger radius
10.Which of the following substances does not belong to the major categories of compounds?
Answer : b.Li
11.In ionic bonds, nonmetals are most likely to ….
Answer : a.gain electrons
12.When a potassium atom reacts with bromine, the potassium will ….
Answer : a.lose only 1 electron
13.The negative ion F- has the same electronic configuration as the positive ion ….
Answer : c.Mg2+
14.Ionic bonds are formed when ….
Answer : b.valence electrons are transferred from one atom to another
15.When a reaction occurs between atoms with ground-state electron configurations of (2,1) and (2,7), the bond formed is mainly ….
Answer : a.ionic
16.Which compound contains ionic bonds?
Answer : b.CaO
17.Lithium and chloride react to form LiCl, an ionic compound. The chloride ion has ____ electrons in its outermost occupied shell.
Answer (d.8)
18.When a sodium atom reacts with a chlorine atom to form a compound, the electron configurations of the ions forming the compound are the same as those in which noble gas atoms?
Answer : d.neon and argon