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8th WMS Sci Vocab 4

8th Grade Science Vocabulary Set #4

The smallest component of an element having the same chemical properties of the element consisting of a nucleus containing combinations of protons, neutrons, and one or more electrons. Atom
Being a substance in a physical state in which it resists changes in size and shape. A substance having a definite shape and volume. Solid
The state in which a substance exhibits a characteristic readiness to flow; fluid matter having no fixed shape but a fixed volume. Liquid
The phase of matter where the particles expand freely to fill their container Gas
Is solids, liquids and/or gases in any form, from which everything physical is made. It is a substance that occupies space and has mass. Matter
An electrically neutral, highly ionized gas composed of ions, electrons, and neutral particles. Plasma
A small, negatively charged particle that is located outside of an elements nucleus with a very small mass but a negative charge that has the same strength as a protons positive charge Electron
The area outside of the nucleus of an atom where the electrons of an atom are located. Electron Cloud
A substance that cannot be broken down into simpler substances by physical or chemical means. Element
A tiny particle that is located in the nucleus of an atom, has about the same mass as a proton, and has no electrical charge. Neutron
A tiny particle that is located in the nucleus of an atom, has mass, and a positive charge. Proton
Two or more atoms held together by covalent bonds, having no overall electrical charge. Molecule
The number of protons in an atom’s nucleus. Atomic Number
The sum of the protons and neutrons in an elements nucleus. Atomic Mass
The rows on the periodic table that are ordered in recurring trends. Elemental Period
The columns of the periodic table, these families have similar chemical and physical properties and also react similarly. Elemental Family
The dense region in the center of an atom that consists of protons and neutrons. Atomic Nuclei
Created by: kkiebler