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Chapter 3 vocabulary
vocabulary
Term | Definition |
---|---|
Atom | A small particle that makes up most types of matter. |
Atomic mass | Is the weighted average mass of the isotopes of an element. |
Atomic number | It tells you the number of protons in the nucleus of each atom of that element. |
Compound | |
Electron | They are invisible,negatively charged particles. |
Element | Is matter made of only on kind of atom. |
Isotope | Which are atoms of the same element that have different numbers of neutrons. |
Law of Conservation of Matter | States that matter is not created or destroyed- it only changes form. |
Mass number | Is the number of protons plus the number of neutrons it contains. |
Matter | Is anything that has mass and takes up space. |
Metal | Generally have a shiny or metallic luster and are good conductors of heat and electricity. |
Metalloid | Are elements that have characteristics of metals and nonmetals. |
Mixture | |
Neutron | Are particle that come from the nucleus and have no charge. |
Nonmetal | Are elements that have |
Nucleus | |
Proton | |
Substance |