Kids Definition atom noun at·om ˈat-əm 1 : a tiny particle : bit 2 : the smallest particle of an element that has the properties of the element and can exist either alone or in combination 3 : th
The two main parts of an atom present in an element are: nucleus and the outer region. Presence of protons and neutrons is observed in this region...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
An atom is the basic unit of an element. When you see the chemical formula for water, H2O, it's telling you that each molecule of water is made up of two atoms of hydrogen and one atom of oxygen.
An atom is the smallest unit of matter that retains the chemical properties of an element. An example of an atom is a carbon atom or a nitrogen atom.What is an Atom? The atom definition is the smallest unit of matter that still holds the properties of an element. Matter is anything tha...
1. the smallest component of an element having the chemical properties of the element, consisting of a positively charged nucleus of neutrons and protons that exerts an electrical attraction on one or more electrons in motion around it. 2. this component as the source of nuclear energy. 3....
An atom is the defining structure of anelement, which cannot be broken by any chemical means. Atypical atomconsists of a nucleus of positively-chargedprotonsand electrically neutralneutronswith negatively-chargedelectronsorbiting this nucleus. However, an atom can consist of a single proton (i.e.,...
the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element. ...
Anelementcan be defined as a molecule consisting of a single type of atom. For instance, oxygen, gold, aluminum, etc., are called elements because they consist of a single type of atom. The Periodic Table Aperiodic tablecan be defined as an ordered and accessible reference chart of elements...
An atom is the basic unit of a chemical element. Everything in the world is made out of atoms. Atoms are made of three main parts: protons, neutrons and electrons. Protons and neutrons are contained inside the very center of the atom, which is called the nucleus. Electrons orbit around ...
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block