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science
Question | Answer |
---|---|
group 1 / colum 1 | has 1 electron they are soft metals are sivler and are good conductors are the most reactive and are never found in nature alone and are highley reactive |
group 2 /colum 2 | has 2 electrons are not relley soft but you can mold them they are white and they are good conducters. they are not as reactive as alkonie metals |
group 17 / colum 17 | howlgens are nonmetals they have 7 outter shells these are the most reactive nonmetals and they form salts |
what are atoms | they are the basic unit of all matter |
what are atomic numbers | the number of protons and electrons in an atom ussally whole number at the top |
what is a compound | it is a substance made up of two or more different elements joined by chemical bonds |
what is a element | it is a subatomic particle that has a negitve charge and move fast around the nucleus of an atom |
what is a group | a column of the pedroic table elements have similar properties |
what are metals | they are elements to the left of the pedoric table shiny,good conducters, and malleable |
what are mellicous | they are elements on the stair step line of the peridoci table that have properties of metals and nonmetals and silcon |
what are netruns | they are subatomic particals that has no charge and is found in the nucleus of an atom |
what are nonmetals | elements to the right of the of the perdoic table have things like poor conductors |
what is a peroidie | a horzontal row of the pedoric table |
what is a proton | a subatomic particle that has a postive charge and is found in the nucleus of an atom |
what is ducctelle | it is the pysical property of a substance to be able to be pulled into thin wires |
what is mallebe | it is the pyscial property of a substance to be able to be hammered into a flat sheet |