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Periodic Table Vocab

QuestionAnswer
An element in Group 18 of the periodic table containing helium, neon, and argon, among others. Noble gases
The central core of an atom containing protons and usually neutrons. Nucleus
The sum of protons and neutrons in the nucleus of an atom. Mass number
A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity. Metal
An element that lacks most of the properties of a metal. Nonmetal
A tiny, negatively charged particle that moves around the nucleus of an atom. Electron
A small, positively charged particle in the nucleus of the atom. Proton
Elements with atomic numbers higher than 92; elements that are not found naturally on Earth. Synthetic elements
A chart of the elements showing the repeating pattern of their properties. Periodic table
A one or two letter representation of an element. Chemical symbol
The ability of an object to transfer heat or electricity to another object. Conductivity
A term used to describe material that can be pounded into shapes. Malleable
Elements in the same vertical column of the periodic table. Group/Family
A horizontal row of elements in the periodic table. Period
A term used to describe a material that can be pulled out into a long wire. Ductile
The average mass of all of the isotopes of an element. Atomic mass
A small particle in the nucleus of the atom, with no electrical charge. Neutron
The number of protons in the nucleus of an atom. Atomic number
An atom with the same number of protons and a different number of neutrons from other atoms of the same element. Isotope
An element that has some of the characteristics of metals and some of the characteristics of nonmetals. Metalloid
Created by: wheat93