Understanding Anions and Valence Electrons

Front

What is an anion?

Back

An anion is a negatively charged ion that has gained one or more electrons.

Front

What is the chemical formula for sulfur hexabromide?

Back

SBr₆

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

Which of the following is a property of metals?

Back

Good conductors of heat and electricity.

Front

What is the molecular structure of carbon dioxide (CO₂)?

Back

The molecular structure of CO₂ consists of one carbon atom double bonded to two oxygen atoms.

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined from the group number of the element in the periodic table.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms to form molecules.

Front

What is the charge of a sulfate ion (SO₄²⁻)?

Back

The sulfate ion has a charge of -2.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions that have lost electrons, while anions are negatively charged ions that have gained electrons.

Front

What is the formula for the ammonium ion?

Back

The formula for the ammonium ion is NH₄⁺.