CP Chem Exam Review Part 2

Front

What is a noble-gas electron configuration?

Back

A noble-gas electron configuration is when an atom has the same electron arrangement as the nearest noble gas, typically having a full outer shell of electrons, which makes the atom stable.

Front

How do atoms achieve noble-gas electron configurations in single covalent bonds?

Back

Atoms achieve noble-gas electron configurations by sharing electrons in a covalent bond, allowing them to fill their outer electron shells.

Front

What is the number of neutrons in the isotope Nitrogen-15?

Back

The number of neutrons in Nitrogen-15 is 8.

Front

How do you calculate the volume of a substance given its mass and density?

Back

Volume can be calculated using the formula: Volume = Mass / Density.

Front

What is the density of a substance?

Back

Density is the mass of a substance per unit volume, typically expressed in g/ml or kg/m³.

Front

In the formula Ba₃P₂, which element is the anion?

Back

In Ba₃P₂, the anion is Phosphorus.

Front

What is the octet rule?

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 greater stability.

Front

How does calcium obey the octet rule when forming compounds?

Back

Calcium obeys the octet rule by giving up two electrons to achieve a stable electron configuration.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the difference between an anion and a cation?

Back

An anion is a negatively charged ion, while a cation is a positively charged ion.