proton - this is a + charged subatomic particle , electron - this is a - charged subatomic particle , neutron - this is a neutral subatomic particle , nucleus - this is where protons and neutrons are found , shell - this is where electrons are found , mass no - this is the number of protons and neutrons , atomic no - this is the no of protons an atom has, alkali metals - these are found in group 1 of the periodic table , halogens - Group 7 of the periodic table , Nobel gases - group 8 of the periodic table , conductor - a material that allows heat and electricity to flow, sonorous - when you hit something and it makes a ding sound , ductile - material can be pulled into wires , brittle - a non metal property which means something breaks easily , alloy - a mixture of metals ,

atom structure

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