Fall Chemistry Mega Review

Front

What is an ionic bond?

Back

A bond formed when two atoms transfer electrons.

Front

What is the average atomic mass of an element with three isotopes?

Back

The average atomic mass is calculated based on the percentages of each isotope.

Front

What is a key safety rule in the chemistry lab?

Back

Always conduct experiments under supervision and report any injuries or broken equipment.

Front

How many electrons does aluminum (Al) lose to become stable?

Back

Aluminum loses three electrons to achieve stability.

Front

What does the law of conservation of mass state?

Back

Mass cannot be created nor destroyed in a chemical reaction.

Front

What is a covalent bond?

Back

A bond formed when two atoms share electrons.

Front

What is a metallic bond?

Back

A bond formed by the attraction between positively charged metal ions and the electrons around them.

Front

What are isotopes?

Back

Atoms of the same element that have different numbers of neutrons.

Front

How do you calculate average atomic mass?

Back

Multiply the mass of each isotope by its relative abundance and sum the results.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.