Understanding Ions

What is the charge of an atom with equal numbers of protons and electrons?

• Positive

• Negative

• Neutral

• Variable

How is a cation formed?

• By losing protons

• By gaining electrons

• By losing electrons

• By gaining protons

Which of the following is a correct representation of a sodium ion?

• Na-

• Na2-

• Na+

• Na2+

What is the charge of a magnesium ion after losing two electrons?

• 1+

• 2-

• 2+

• 1-

What is an anion?

• An ion with no charge

• A neutral atom

• A negatively charged ion

• A positively charged ion

How does a chlorine atom become a chloride ion?

• By losing a proton

• By losing an electron

• By gaining a proton

• By gaining an electron

What suffix is used in the naming of anions?

• ide

• ous

• ite

• ate

Which of the following is true about the formation of ions?

• Ions are formed by changing the number of electrons.

• Ions are formed by changing the atomic mass.

• Ions are formed by changing the number of neutrons.

• Ions are formed by changing the number of protons.

In which type of elements do ions most often form?

• Non-metallic elements only

• Metallic elements only

• When metallic elements combine with non-metallic elements

• When non-metallic elements combine with each other

What type of ions do metals in rows 1 and 2 of the periodic table typically form?

• Positive ions

• Neutral ions

• Variable ions

• Negative ions