Question 1

Which of the following best describes an ion?

Accepted Answer

An atom or molecule with a net electrical charge due to the gain or loss of electrons.

Question 2

When a hydrogen atom loses one electron, what type of ion does it become?

Accepted Answer

A cation with a $$+1$$ charge.

Question 3

Which of the following is true about cations?

Accepted Answer

Cations are positively charged ions formed when atoms lose electrons.

Question 4

What is the charge of an anion formed by the gain of two electrons?

Accepted Answer

$$-2$$

Question 5

Which of the following statements is true for ALL atoms that are ions?

Accepted Answer

The atom has an unequal number of protons and electrons.

Question 6

Ionic bonds are formed by:

Accepted Answer

Atoms of opposite charges attracting each other.

Question 7

Which of the following best describes the process of forming an ionic bond in sodium chloride ($$\mathrm{NaCl}$$)?

Accepted Answer

Sodium transfers an electron to chlorine, resulting in oppositely charged ions that attract each other.

Question 8

Which of the following atoms would be most likely to lose an electron and become a cation of $$+1$$?

Accepted Answer

An atom with a single electron in its outermost shell.

Question 9

If an atom has 11 protons and 10 electrons, what is its net charge?

Accepted Answer

$$+1$$

Question 10

Which of the following is a real-world example of an ionic bond?

Accepted Answer

The bond between sodium and chlorine in table salt ($$\mathrm{NaCl}).$$

Question 11

Which of the following ions is negatively charged?

Accepted Answer

Anion

Question 12

What happens to the atomic structure when an atom becomes an anion?

Accepted Answer

It gains electrons.

Question 13

Which of the following best explains why ionic compounds tend to have high melting points?

Accepted Answer

The strong electrostatic attraction between oppositely charged ions requires a lot of energy to break.

Question 14

If a chlorine atom gains one electron, what ion does it form?

Accepted Answer

$$\mathrm{Cl^-}$$

Question 15

Which of the following is NOT a property of ionic compounds?

Accepted Answer

They have low melting points.

Question 16

Which of the following best describes the electron configuration of a sodium ion ($$\mathrm{Na^+}$$)?

Accepted Answer

It has the same electron configuration as neon ($$\mathrm{Ne}).$$

Question 17

Which of the following is most likely to occur when a metal reacts with a nonmetal?

Accepted Answer

The metal loses electrons and the nonmetal gains electrons, forming an ionic bond.

Question 18

Which of the following best describes the role of valence electrons in ionic bonding?

Accepted Answer

Valence electrons are transferred from one atom to another.

Question 19

Which of the following would most likely form an anion?

Accepted Answer

An atom with seven electrons in its outermost shell.

Question 20

Which of the following is the correct formula for the ionic compound formed between sodium ($$\mathrm{Na}) $$and chlorine ($$\mathrm{Cl}$$)?

Accepted Answer

$$\mathrm{NaCl}$$

Ionic Bonding: Ions, Anions, and Cations

Study Guide - Practice Questions