C2 formation of ions

Question 1

What is an ion?

Answer 1

An ion is an atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.

Question 2

True or False: Cations are positively charged ions.

Answer 2

True

Question 3

What type of ion is formed when an atom gains electrons?

Answer 3

An anion.

Question 4

Fill in the blank: An atom becomes a cation when it __________ electrons.

Answer 4

loses

Question 5

What is the charge of a sodium ion (Na+)?

Answer 5

Positive one (+1).

Question 6

Which group of the periodic table typically forms cations?

Answer 6

Group 1 (alkali metals) and Group 2 (alkaline earth metals).

Question 7

What is the charge of a chloride ion (Cl-)?

Answer 7

Negative one (-1).

Question 8

Multiple Choice: Which of the following ions is a cation? A) O2- B) Na+ C) Cl-

Answer 8

B) Na+

Question 9

True or False: Ionic compounds are formed from the combination of cations and anions.

Answer 9

True

Question 10

What is the process called when an atom loses or gains electrons?

Answer 10

Ionization.

Question 11

Fill in the blank: The charge of a magnesium ion (Mg2+) is __________.

Answer 11

Positive two (+2).

Question 12

Which ion would you expect to form from a fluorine atom?

Answer 12

A fluoride ion (F-).

Question 13

What happens to the size of an atom when it becomes a cation?

Answer 13

It decreases in size.

Question 14

Multiple Choice: Anions are typically formed by which kind of elements? A) Metals B) Non-metals C) Noble gases

Answer 14

B) Non-metals

Question 15

What is the name of the process where ionic compounds dissolve in water?

Answer 15

Dissociation.