Chemistry - Semester 1 Final Exam Review

Front

Which element is in period 1, group 8?

Back

Helium is the only element in period 1, group 8 of the periodic table.

Front

What type of bond forms between H and Br?

Back

A covalent bond forms between hydrogen (H) and bromine (Br) as they share electrons.

Front

What is the correct name for Mg²⁺?

Back

The correct name for Mg²⁺ is magnesium ion.

Front

What charge will nitrogen have once it reaches an octet?

Back

Nitrogen will have a charge of -3 once it reaches an octet.

Front

What is the name of the compound Ca₃N₂?

Back

The name of the compound Ca₃N₂ is calcium nitride.

Front

Define an ionic bond.

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

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.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically shiny, malleable, and good conductors of heat and electricity, while nonmetals are usually dull, brittle, and poor conductors.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What is the formula for calculating the number of protons in an atom?

Back

The number of protons in an atom is equal to the atomic number of the element.