MATTER BOOK TEST
Terms
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- actinoid series
- 2nd row of rare-eart elements in the periodic table : radio active, synthetic
- alkali metal
- member of element family 1 that has 1 valence electron
- alkaline earth metal
- member of element family 2 that has 2 valence electrons
- alloy
- a solution of two metal or a metal and a nonmetal that has the properties of a metal
- atom
- smallest particle of an element that has all the properties of that element
- atomic mass
- average of the masses of the existing isotopes of an element
- atomic mass unit
- amu , unit used to measure the masses of subatomic particles, a proton has a mass of 1 AMU
- atomic number
- number of protons in the nucleus
- boiling
- process in which particles inside a liquid as well as those on the surface of a liquid change to gas
- boiling point
- temperature at which a substance changes from the liquid stange to the gas stage