Chemistry Final Review

Front

How do we find the number of protons in an isotope?

Back

The number of protons in an isotope is equal to the atomic number of the element, which is not calculated by subtracting from mass number.

Front

Ionic bonds form between _____________.

Back

Ionic bonds form between metals and nonmetals.

Front

What is the oxidation number (charge) of Group 13?

Back

The oxidation number of Group 13 is +3.

Front

Why do ionic bonds form?

Back

Ionic bonds form because positive ions (cations) are attracted to negative ions (anions).

Front

ClO3^-1 is an example of a(n) _________.

Back

ClO3^-1 is an example of a polyatomic ion.

Front

What is an ionic bond?

Back

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

Front

Define 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 ionic compound and a covalent compound?

Back

Ionic compounds are formed from ionic bonds between metals and nonmetals, while covalent compounds are formed from covalent bonds between nonmetals.

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 a stable electron configuration.

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded together.