12-12

Front

What is the atomic number of an atom?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What does ionic bonding involve?

Back

Ionic bonding involves the transfer of electrons from one atom to another, resulting in the formation of ions.

Front

What is a mixture of two or more elements, at least one of which is a metal, called?

Back

An alloy.

Front

What elements generally make a covalent bond?

Back

Covalent bonds are generally formed between two nonmetals.

Front

What is the chemical name for CaCO3?

Back

Calcium carbonate.

Front

Define an ion.

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons between atoms.

Front

What is a metal?

Back

A metal is a type of element that is typically shiny, malleable, ductile, and a good conductor of heat and electricity.

Front

What is a nonmetal?

Back

A nonmetal is an element that typically lacks the characteristics of metals and can be a poor conductor of heat and electricity.

Front

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

Back

Number of neutrons = Atomic mass - Atomic number.