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Atomic Theroy
Term | Definition |
---|---|
neutron | they have equal masses to protons but they have no charge |
electron | they have negative charge, it takes about 1,837 electrons to equal the mass of one proton |
proton | they have positive charge, they are included in atoms |
element | when something is made out of only one kind of atom |
atom | it can be solid, liquid, or gas matter is made out of atoms |
malleable | able to be hammered or pressed permanently out of shape without breaking or shaping |
luster | a gentle sheen or soft glow |
ductile | able to be drawn out into a thin wire |
corrosile | rusts |
density | the weight of something |
Nobel Gases | The noble gases make a group of chemical elements with similar properties |
Transitional Metals | ncludes groups 3 to 12 on the periodic table |
Halogens | consisting of five chemically related elements fluorine, chlorine, bromine, iodine, astatine |
Alkali Metals | are a group in the periodic table that include lithium, sodium, potassium, cesium, francium |
Alkali Earth Metals | are a group of chemical elements in the periodic table with very similar properties. |
Substance | Is a matter that has the same fixed composition and properties |
Heterogenous Mixture | type of mixture where the substances are not evenly mixed |
Homogenous Mixture | contains two or more substances that are evenly mixed |
Solution | another name for a homogenous mixture |
Soulte | the substance that devolves, or seems to disappear |
Solvent |