U1-3 Chemistry Review

Front

What is a dot diagram?

Back

A dot diagram, also known as a Lewis dot structure, represents the valence electrons of an atom as dots around the element's symbol.

Front

What is the molar mass of an element?

Back

The molar mass of an element is the mass of one mole of that element, typically expressed in grams per mole (g/mol), and is numerically equal to its atomic mass.

Front

What type of bond does Potassium (K) form with Sulfur (S)?

Back

Potassium forms an ionic bond with Sulfur.

Front

What happens to an atom when it loses a valence electron?

Back

When an atom loses a valence electron, it becomes a positive ion (cation).

Front

What is the molar mass of fluorine gas (F2)?

Back

The molar mass of fluorine gas is 38 g/mol.

Front

Define 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 atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is a metallic bond?

Back

A metallic bond is a type of chemical bond that occurs between metal atoms, characterized by a 'sea of electrons' that are free to move.

Front

What is a positive ion?

Back

A positive ion, or cation, is an atom that has lost one or more electrons, resulting in a net positive charge.