The number of protons found in the nucleus of an atom

Theory that all matter is made up of atoms

a simple representation that explains how electrons move around the nucleus of an atom

a short hand way to represent an element in Chemistry

a small stabilizing piece in the nucleus of an atom

an electron on the outermost shell, also called energy level, from the nucleus of an atom

What is the term for an atom or molecule with a net electric charge due to the loss or gain of one or more electrons?

The positively charged center of an atom is called

What is the term for the region around the nucleus of an atom where electrons are most likely to be found?

a small particle with a positive charge inside the nucleus of an atom

horozontal rows on the periodic table. There are 7

what atoms are made of

a tiny particle of negative energy that orbits around the center of an atom

fixed distance of electrons from the nucleus of an atom

a vertical column down the periodic table. There are 18 and may be referred to by number or name.

An atom with a net electric charge due to the loss or gain of one or more electrons.

a form of an element that has the same number of protons but a different number of neutrons in its nucleus

What is the chemical symbol for Calcium

What is the atomic number of Oxygen