Pearson - 9Ga - Ions, Conductivity & Ionic Bonding

What is an ion?

• An atom with no charge

• An atom with no protons and electrons

• An atom with different numbers of protons and electrons

• An atom with equal numbers of protons and electrons

Which type of ions are mostly formed by metals?

• Hydrogen ions

• Neutral ions

• Negative ones or anions

• Positive ions or cations

Why do atoms form ions?

• To achieve a stable electronic configuration

• To become radioactive

• To increase the number of protons

• To decrease the number of neutrons

How do atoms of metals usually become stable?

• By gaining protons

• By losing protons

• By losing electrons

• By gaining electrons

What is the charge on an iron (II) ion?

• +4

• +3

• +2

• +1

Which type of ions are mostly formed by non-metals?

• Hydrogen ions

• Neutral ions

• Negative ones or anions

• Positive ions or cations

What is the charge on a chlorine ion?

• +1

• -2

• -1

• +2

What is a hydride ion?

• A neutral ion

• An ion with no protons

• A negatively charged ion

• A positively charged ion

What are polyatomic ions?

• Ions with two or more atoms

• Ions with only one atom

• Ions with two atoms

• Ions with three atoms

How do noble gases produce light?

• By absorbing protons

• By removing neutrons

• By exciting valence electrons

• By emitting electrons