Question 1

Which of the following elements is expected to have the largest atomic radius?

Accepted Answer

Na

Question 2

Which of the following pairs of elements is most likely to form an ionic bond?

Accepted Answer

Na and Cl

Question 3

Which of the following molecules is polar?

Accepted Answer

HCl

Question 4

Which of the following atoms has the highest first ionization energy?

Accepted Answer

F

Question 5

What is the correct formula for the compound formed between magnesium and oxygen?

Accepted Answer

$$\mathrm{MgO}$$

Question 6

Which of the following best describes the electron domain geometry of $$\mathrm{SF_6$}$$?

Accepted Answer

Octahedral

Question 7

Which of the following ions has the smallest radius?

Accepted Answer

$$\mathrm{Al$$^{3+}$$}$$

Question 8

Which of the following compounds contains both ionic and covalent bonds?

Accepted Answer

$$\mathrm{$$NaNO_3$$}$$

Question 9

Which of the following elements is most likely to have an expanded octet?

Accepted Answer

S

Question 10

Which of the following best describes the hybridization of the central atom in $$\mathrm{SF_4$}$$?

Accepted Answer

$$sp^3d$

Question 11

Which of the following molecules has a trigonal planar molecular geometry?

Accepted Answer

$$\mathrm{BF_3$}$$

Question 12

Which of the following is the best Lewis structure for $$\mathrm{CO_2$}$$?

Accepted Answer

O=C=O, with each O atom having two lone pairs

Question 13

Which of the following atoms is most shielded from nuclear charge in a neutral atom?

Accepted Answer

An electron in the $$n=3$$ shell

Question 14

Which of the following is the correct order of increasing electronegativity?

Accepted Answer

K \u003c Ca \u003c Br \u003c F

Question 15

Which of the following best describes the molecular geometry of $$\mathrm{NH_3$}$$?

Accepted Answer

Trigonal pyramidal

Question 16

Which of the following substances is an ionic compound?

Accepted Answer

$$\mathrm{NaCl}$$

Question 17

Which of the following best describes the hybridization of the central atom in $$\mathrm{CH_4$}$$?

Accepted Answer

$$sp^3$$

Question 18

Which of the following atoms is most likely to have an incomplete octet in a stable compound?

Accepted Answer

B

Question 19

Which of the following best describes the electron domain geometry of $$\mathrm{PF_5$}$$?

Accepted Answer

Trigonal bipyramidal

Question 20

Which of the following best describes the bond angle in $$\mathrm{H_2O}$$?

Accepted Answer

$$104.5^\circ$$

General Chemistry Study Guide: Atomic Structure, Bonding, Molecular Geometry, and Chemical Quantities

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