S8P1.a Word Scramble
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Term | Definition |
atom | the smallest unit of an element that maintains the properties of that element. |
element | a substance that cannot be separated or broken down into simpler substances by chemical means. |
nucleus | in physical science, an atom's central region, which is made up of protons and neutrons. |
proton | a subatomic particle that has a positive charge and that is found in the nucleus of an atom. |
neutron | a subatomic particle that as no charge and that is found in the nucleus of an atom. |
electron | a subatomic particle that has a negative charge. |
atomic number | the number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element. |
neutral | having no overall charge. |
atomic mass | the mass of an atom expressed in atomic mass unit. |
chemical symbol | a one- or two-letter code that represents an element. |
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