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8th WMS Sci Vocab 4
8th Grade Science Vocabulary Set #4
Question | Answer |
---|---|
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 |