Sub Day 12/12 Flashcardizz Final Review

Front

What is the atomic number of an element?

Back

The atomic number is the value representing the number of protons in an element.

Front

What is the name of the compound C3Cl8?

Back

The name of the compound C3Cl8 is Tricarbon octachloride.

Front

Where is most of the mass in an atom located?

Back

Most of the mass in an atom is located in the nucleus.

Front

What type of ion do metal atoms form when they lose electrons?

Back

Metal atoms form positive ions when they lose electrons.

Front

What type of ion do non-metal atoms form when they gain electrons?

Back

Non-metal atoms form negative ions when they gain electrons.

Front

What is the charge on the hydroxide ion (OH-)?

Back

The charge on the hydroxide ion is -1.

Front

Define atomic mass.

Back

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

Front

What is a valence electron?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the difference between mass number and atomic number?

Back

The mass number is the total number of protons and neutrons in an atom, while the atomic number is the number of protons.

Front

What is 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.