Chemistry - January 2011

6 The valence electrons of a germanium atom in the ground state are located in the

(1) first shell        (3) third shell
(2) second shell   (4) fourth shell

7 The elements on the Periodic Table are arranged in order of increasing

(1) atomic mass
(2) atomic number
(3) first ionization energy
(4) selected oxidation state

8 Which list of elements contains a metal, a metalloid, a nonmetal, and a noble gas?

(1) Be, Si, Cl, Kr     (3) K, Fe, B, F
(2) C, N, Ne, Ar      (4) Na, Zn, As, Sb

9 The two forms of oxygen, O2(g) and O3(g), have

(1) different molecular structures and identical properties
(2) different molecular structures and different properties
(3) identical molecular structures and identical properties
(4) identical molecular structures and different properties

10 The sum of the atomic masses of the atoms in one molecule of C3H6Br2 is called the

(1) formula mass
(2) isotopic mass
(3) percent abundance
(4) percent composition

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