An atom of which of the following elements has the highest electron affinity?
Select one:
a. Br
b. Cl
c. Rb
d. As
e. Se
An atom of which of the following elements is not diamagnetic in the ground state?
Select one:
a. Rn
b. Ca
c. Pt
d. Cd
e. All are diamagnetic.
The general electron configuration for the outermost electrons of the halogens is
Select one:
a. ns2np4
b. ns2np5
c. ns2np6
d. ns2np2
e. ns2np3
What is the maximum number of electrons that can be accommodated in the n = 2 shell?
Select one:
a. 24
b. 4
c. 22
d. 8
e. 16
Which ion is isoelectronic with Ar?
Select one:
a. Br-
b. Mg2+
c. Fe2+
d. Ca2+
e. F-
Which of the following atoms is paramagnetic in its ground state?
Select one:
a. Calcium (Ca)
b. Cadmium (Cd)
c. Argon (Ar)
d. Tin (Sn)
e. Barium (Ba)
Which of the following elements has the greatest electron affinity?
Select one:
a. Al
b. Si
c. Na
d. Mg
e. S
Which of the following elements would be expected to have chemical and physical properties most similar to those of the bromine (Br)?
Select one:
a. Ca
b. Ne
c. Pb
d. Cl
e. Ga
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