Test review ionic compounds

Ionic compounds contain:

• metals + non-metals

• metals + metals

• non-metals + non-metals

Answer explanation

Ionic compounds are formed by the combination of metals and non-metals. This is the correct choice because metals and non-metals have opposite charges, allowing them to form ionic bonds.

A cation

• positive ion

• negative ion

• neutral ion

Answer explanation

A cation is a positive ion.

anion

• positive ion

• negative ion

• neutral ion

Answer explanation

An anion is a negative ion.

Type of ion with a postive charge

• anion

• neutral

• cation

Answer explanation

A cation is a type of ion with a positive charge. It is the correct choice because it is the only option that describes an ion with a positive charge.

type of ion with a negative charge

• cation

• neutral

• anion

Answer explanation

An anion is a type of ion with a negative charge. It is the correct choice because it is the only option that describes an ion with a negative charge.

Ionic compound

• NaCl

• CO₂

• PCl₅

• NO₂

Answer explanation

An ionic compound is formed when a metal and a non-metal combine through ionic bonding. Among the given choices, NaCl is the only compound that consists of a metal (Na) and a non-metal (Cl). Therefore, NaCl is the correct choice for an ionic compound.

Tags

NGSS.HS-PS1-3

An ion in this group will form a 1+ charge

• 1A

• 2A

• 3A

• 5A

Answer explanation

An ion in group 1A will form a 1+ charge because it loses one electron to achieve a stable octet configuration.

Tags

NGSS.HS-PS1-1

An ion in this group will form a 2+ charge

• 1A

• 2A

• 3A

• 5A

Answer explanation

An ion in the 2A group will form a 2+ charge because elements in this group lose two electrons to achieve a stable octet configuration.

An ion in this group will form a 3+ charge

• 1A

• 2A

• 3A

• 5A

Answer explanation

An ion in group 3A will form a 3+ charge because it loses 3 electrons to achieve a stable configuration.

Tags

NGSS.HS-PS1-1

An ion in this group will form a 3- charge

• 1A

• 2A

• 3A

• 5A

Answer explanation

An ion in group 5A will form a 3- charge because it gains three electrons to achieve a stable electron configuration.