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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 |