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. alkali metals IIIA<br />
c. lanthanides 58Ce - 71Lu<br />
d. halogens VIIA<br />
e. noble gases VIIIA<br />
____ 146. __________ is an actinide.<br />
a. 22Ti<br />
b. 42Mo<br />
c. 81Tl<br />
d. 36Kr<br />
e. 92U<br />
____ 147. What would be the outer electron configuration of group IIIB (Sc, Y, La . . .)?<br />
a. ns 2 nd 2 np 0<br />
b. nd 1 ns 2<br />
c. ns 2 (n-1)d 1<br />
d. ns 1 np 3<br />
e. (n-1)d 1 ns 2<br />
____ 148. Which element has the largest atomic radius?<br />
a. Al<br />
b. Si<br />
c. P<br />
d. S<br />
e. Cl<br />
____ 149. Which element has the largest atomic radius?<br />
a. 9F<br />
b. 16S<br />
c. 11Na<br />
d. 28Ni<br />
e. 37Rb<br />
____ 150. Arrange the following elements in order of increasing atomic radii.<br />
K, Na, Mg, Cs, Cl<br />
a. Na < Mg < Cl < K < Cs<br />
b. Cl < Mg < Na < K < Cs<br />
c. Cs < K < Cl < Mg < Na<br />
d. Cl < Mg < Cs < K < Na<br />
e. Cl < Mg < Na < Cs < K<br />
____ 151. Which element has the lowest first ionization energy?<br />
a. Be<br />
b. B<br />
c. C<br />
d. N<br />
e. O<br />
____ 152. Arrange the following elements in order of decreasing first ionization energy.<br />
Be, Ca, Cs, Mg, K
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