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Science 3-5,6,7,8
| Question | Answer |
|---|---|
| atomic mass | total mass of the protons and neutrons in an atom, measured in atomic mass units (amu) |
| mass number | number of protons and neutrons in the nucleus of an atom |
| energy level | place in an electron cloud where an electron is most likely to be found |
| chemical symbol | shortened way of writing the name of an element |
| periodic | repeating pattern |
| group | vertical column of elements in the periodic table |
| period | horizontal row of elements in the periodic table |
| metal | element that has the property of shiny luster, ductility, and malleability |
| luster | the way a material reflects light |
| malleable | able to be hammered into different shapes |
| ductile | able to be drawn into thin wires |
| nonmetal | element that lacks most of the properties of a metal |