Ions and Ionic Compounds

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.

Front

What is the electron configuration of neon?

Back

The electron configuration of neon is 1s² 2s² 2p⁶, which means it has a full outer shell of 8 electrons.

Front

What happens to magnesium (Mg) when it loses two electrons?

Back

When magnesium loses two electrons, it achieves an octet configuration, becoming Mg²+.

Front

What is the formula for the compound formed by aluminum (Al³⁺) and sulfate (SO₄²⁻)?

Back

The formula is Al₂(SO₄)₃.

Front

What is the correct formula for magnesium oxide?

Back

The correct formula for magnesium oxide is MgO.

Front

What are ionic compounds?

Back

Ionic compounds are chemical compounds composed of ions held together by electrostatic forces termed ionic bonding.

Front

What properties do ionic compounds exhibit?

Back

Ionic compounds are typically hard, brittle, and have high melting and boiling points.

Front

Why are ionic compounds not electrical conductors as solids?

Back

In solid form, the ions in ionic compounds are fixed in place and cannot move freely, preventing electrical conductivity.

Front

What is the significance of the octet rule in ionic bonding?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to stability.

Front

How do you determine the charge of an ion?

Back

The charge of an ion is determined by the difference between the number of protons (positive) and electrons (negative) in an atom.