Chemistry Semester 1 Review

Front

Which fundamental force holds particles in the nucleus together?

Back

The strong nuclear force is the fundamental force that holds protons and neutrons together in the nucleus of an atom.

Front

What charge do ions of halogens form?

Back

Halogens typically form ions with a charge of 1-, meaning they gain one electron to achieve a stable electron configuration.

Front

According to the octet rule, most atoms want 8...

Back

According to the octet rule, most atoms desire 8 valence electrons in their outer shell to achieve stability.

Front

What is the chemical formula for sodium chlorite?

Back

The chemical formula for sodium chlorite is NaClO.

Front

Which subatomic particle has a positive charge?

Back

The proton is the subatomic particle that has a positive charge.

Front

What is the definition of an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.

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 electrons between atoms.

Front

What is the role of neutrons in an atom?

Back

Neutrons help to stabilize the nucleus of an atom by offsetting the repulsive forces between positively charged protons.

Front

What is the octet rule?

Back

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

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are crucial in determining how an atom will bond with others.