Periodic Table

An element that has some of the characteristics of metals & some of nonmetals.

An element in Group 18 of the periodic table.

A tiny, negatively charged particle that moves around the nucleus of an atom.

A small, positively charged particle in the nucleus of an atom.

The number of protons in the nucleus of an atom.

An element that lacks most of the properties of a metal.

An element in the second row of the rare earth elements in the periodic table.

The central core of an atom containing protons and usually neutrons.

The average mass of one atom of an element.

A one or two letter representation of an element.

A small particle in the nucleus of an atom, with no electrical charge.

An element in Group 2 of the periodic table.

A molecule composed of two identical atoms.

An element that can conduct electricity under some conditions.

A term used to describe material that can be hammered or rolled into a shape.

Elements in the same vertical column of the periodic table.

The elements in Group 17 of the periodic table.

A unit used to measure the mass of particles in atoms.

An element in Group 1 of the periodic table.

The gradual wearing away of a metal element due to a chemical reaction.

A chart of the elements showing the repeating pattern of their properties.

A term used to describe a material that can be pulled out into a long wire

A substance that transmits heat or electricity easily.

A characteristic of those metals that are attracted to magnets and can be made into magnets.

One of the electrons farthest away from the nucleus of the atom (involved in chemical reactions).

The ease and speed with which an element or compound combines with other elements and compounds.

A mixture of two or more elements.

A horizontal row of elements in the periodic table

An element in Groups 3 through 12 of the periodic table.

An element in the first row of the rare earth elements in the periodic table.