Conceptual Physics 11: The Atomic Nature of Matter
Terms in this set (24)
The Building blocks of all matter. The smallest particle of an element that has all of the element's chemical properties
The subatomic particle that is so small and has such little mass it is not even considered in the mass of an atom. Negatively Charged particle that orbits the nucleus.
The core of an atom, consisting of two basic subatomic particles - protons and neutrons. The basis of practically all of the mass of the atom.
Positively charged particle in the nucleus of the atom
A pure substance consisting of only one kind of atom
The number that designates the identity of an element, which is the number of protons in the nucleus of the atom. In a neutral atom, it is also the number of electrons in the atom.
Periodic Table of the Elements
A chart that lists the elements in horizontal rows by their atomic number and in vertical columns by the similar electron arrangements and chemical properties
An electrically charged particle; a particle with an excess or deficiency of electrons.
An atom of the same element that contains a different number of neutrons
Atomic Mass Unit (amu)
The standard unit of measure used for indicating atomic mass
A material in which atoms of different elements are chemically bonded to one another
A substance whose components are mixed together without combining chemically
A "complementary" form of matter composed of atoms with negative nuclei and positive electrons.
Unseen and unidentified matter that is evident by its gravitational pull on stars in the galaxies.
The majority of "anti-gravity" material in space. that which is responsible for the outward push on the expanding universe
A subatomic particle that has no charge and that is found in the nucleus of an atom
Any subatomic particle found in the atomic nucleus. Another name for either a proton or a neutron.
Believed to be one of the basic building blocks of matter. Quarks are the building blocks of nucleons (protons and neutrons)
A negatively charged ion
A positively charged ion
A combination of symbols that represents the elements in a compound.
A group of atoms bonded together
a superheated gas