Semester 1 final review

Front

Which group is very stable due to the fact that they have a full outermost energy level?

Back

Noble gases are very stable due to having a full outermost energy level.

Front

What base unit is used in the metric system to measure LENGTH?

Back

The base unit used in the metric system to measure length is Meters.

Front

What is the formula for calculating percent by mass?

Back

Percent by mass = (mass of solute / mass of solution) x 100%.

Front

What do chemical bonds form when atoms do?

Back

Chemical bonds form when atoms share or transfer electrons.

Front

What two types of atoms make a covalent bond?

Back

A covalent bond is formed between 2 Nonmetals.

Front

What is the definition of an alkali metal?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive.

Front

What is the definition of a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving stability.

Front

What is the metric unit for measuring mass?

Back

The metric unit for measuring mass is Grams.