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science9
chemistry
Question | Answer |
---|---|
what is an atom? | An atom is the smallest part of a element. |
what are subatomic particles? | particles that are smaller then atoms. The three are Protons, Neutrons and Electrons. |
what are protons? | protons are positively charged subatomic partials. |
neutron are? | neutrons have no charge...neutral. |
electrons are? | electrons are what fills up the space sounding the nucleus. They have a negative charge |
what are metals? | metals are on the left side of the periodic table. |
what are non- metals? | non- metals are located on the right side of the periodic table. |
what is ductile? | ductile are metals that are able to be formed into wires or strips. |
where are metalloids on the table? | they are in the stair case...elements containing both metal and non metal properties |
what is the atomic number? | number of protons in any give element. |
what is atomic mass? | the weight averaged of the masses of the atoms of a element. |
alkali metals? | soft, strong and have a low densities. |
alkaline earth metals? | all are reactive, very soft and have a low densities. |
halagons are? | gasses at room tempture. |
noble gasses are? | normally unreactive and colorless. |
what is a ion? | ions have the same number of protons and electrons but a different number of shells. |
what's a element? | a pure substance that can not be broken down. |
what is a compound? | When we chemically combine two elements. |
whats a covalent compound? | compounds that form when atoms share electrons and form molecules. Combining a non-metal with another non-metal |
ionic compounds are? | compounds that form when a metal is combined with a non-metal. |
malleable is: | a property of metals that make them moldeable and able to form into outher shapes |