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vocab/flash cards
Question | Answer |
---|---|
Reactivity | The ease and speed with which an element or compound cobines with other elements or compouds. |
Melting Point | The temperature at which a substance changes from a solid to a liquid. |
Density | a measurement of how much mass of a substance is contained in a givin volume. |
Bioiling point | The tempature at which a substance changes from a liquid to a gas. |
Flammability | The ability for a substance to ignite and burn. |
Characteristic Property | a quality of a substance that never changes and can be used to identify a substace. |
pH | The greek symbol used in exspressing the acidity or alkaline of an element. |
Physical Properties | The ability of a substance to alter its form but does not change into a new substance. |
Conductivity | the ability or ease of a substance to transmit heat or electricity. |
Chemical Properties | the ability of a substance to change into a new substance or combine with a substance. |
Atomic mass | the average mass of one atom of an element . Mass is calculated by combining the mass of protons and neutrons. |
Proton | a small,positively charged particle in the nucleus of an atom. |
Atom | The smallest paticle of an element |
subatomic | The name given to particles that are smaller than the atom and make up atom. |