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Periodic Table Vocab
| Question | Answer |
|---|---|
| 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 |