Question

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

Answer 1

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