Reference no: EM13174781

1. Which statement best describes relationships in a modern periodic table?

A.) Each transition element is placed in the column of the main group element that it most closely resembles.

B.) Elements are always arranged in order of increasing atomic weights

C.) Nonmetallic properties tend to predominate for elements at the far right portion of the table.

D.) The fourteen elements in the "Lanthanide" series form a new independent period.

E.) Metalloids usually are the cations in ionic compounds.

2. In which set of elements would all members be expected to have very similar chemical properties?

A.) Ne, Na, Mg

B.) N, O, F

C.) S, Se, Si

D.) O, S, Se

E.) Na, Mg, K

3. ____________ is isoelectric with argon and ______________ is isoelectric wih neon.

A.) Ne-, Kr+

B.) Cl-, Cl+

C.) Ne-, Ar+

D.) Cl-, F-

E.) F+, F-

4. Which equation correctly represents the first ionization of aluminum?

A.) Al (g) + e- yields Al- (g)

B.) Al+ (g) + e- yields Al (g)

C.) Al (g) yields Al- (g) + e--

D.) Al- (g) yields Al (g) + e--

E.) Al (g) yields Al+ (g) + e--

5. Which of the following has the greatest radius?

A.) Sr2+

B.) Cl-

C.) Se2-

D.) Br

E.) As3-

6. Choose the species from which one electron could most easily be removed.

A.) Cl

B.) Ar

C.) Ca+

D.) K+

E.) K