Ions and Binary Ionic Compounds Review

Front

What tells you the number of rings an atom has?

Back

The row number of the periodic table indicates the number of electron rings (energy levels) an atom has.

Front

What is the charge on element #11 (Na) if it has 10 electrons?

Back

The charge would be +1, as sodium typically has 11 protons and loses one electron to achieve a stable configuration.

Front

What is the name of the compound formed by zinc ions (Zn²⁺) and fluoride ions (F⁻)?

Back

The compound is called zinc fluoride.

Front

What is the charge on element #20 (Ca) if it has 18 electrons?

Back

The charge would be +2, as calcium typically has 20 protons and loses two electrons to achieve a stable configuration.

Front

What do we call compounds that have the same number of positive and negative charges?

Back

They are said to be electrically neutral.

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 charge.

Front

What is a cation?

Back

A cation is a positively charged ion, formed when an atom loses one or more electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion, formed when an atom gains one or more electrons.

Front

How do you determine the charge of a main group element?

Back

The charge can often be determined by the number of electrons an atom needs to gain or lose to achieve a full outer shell, typically 8 electrons.

Front

What is the formula for calculating the charge of an ion?

Back

Charge = Number of protons - Number of electrons.