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Vocabulary
PS4
Term | Definition |
---|---|
Metal | An element that is shiny and that conducts heat and electricity well. |
Nonmetal | An element that conducts heat and electricity poorly. |
Metalliod | Elements that have properties of both metals and nonmetals. |
Periodic Law | The law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements. |
Proton | A subatomic particle that has a positive charge and that is found in the nucleus of an atom. |
Neutron | A subatomic particle that has no charge and that id found in the the nucleus of an atom. |
Electron | A subatomic particle that has a negative charge. |
Atomic Symbol | The number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus. Also called proton number. |