12 Week Key Terms Reteach Tutorial

Front

What is a covalent bond?

Back

A covalent bond is the sharing of electron pairs between atoms.

Front

How do you calculate the average atomic mass of an element with multiple isotopes?

Back

To calculate the average atomic mass, multiply the mass of each isotope by its relative abundance (as a decimal), then sum these values.

Front

What is the mass number of an atom?

Back

The mass number of an atom is the total number of protons and neutrons in its nucleus.

Front

What type of bond forms between a metal and a non-metal?

Back

An ionic bond forms between a metal and a non-metal.

Front

Which element is classified as a halogen?

Back

Fluorine is classified as a halogen.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electron pairs.

Front

What is an isotope?

Back

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons.

Front

How do you determine the number of neutrons in an atom?

Back

To determine the number of neutrons, subtract the atomic number (number of protons) from the mass number.

Front

What is the significance of the periodic table in chemistry?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are the characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.