All alkaline metals are very reactive. this is due to the number of electrons they have in there outer shell. they are situated in the group 1,2 and im not 100% group 6-7. this is because the group determines how many electrons are in the atoms outer shell. so with all atoms trying to get a full outer shell of electrons they will try and loose or gain electrons. so group one and two will quickly try and loose there 1 or 2 outer electrons to get a full outer shell thus making them very reactive and the same with group 6-7 they can not loose there electrons because this would make them positively charged and make it harder for electrons to leave so instead they gain electrons to achieve a full outer shell.
they are all hard to break
They are all non metals.
Aluminium, copper, iron, lead, and gold are all elements. They are all metals. They are malleable and ductile.
They are all metal elements, specifically transition metals.
Semi-metals
mass
they are all hard to break
They all have at least one electron.
they have the elements and they are in the same substances
they are all non metals
They are all non metals.
Aluminium, copper, iron, lead, and gold are all elements. They are all metals. They are malleable and ductile.
all are metals and condutors
there all metals, or nonmetals
All are metals and used to make coins.
iron steel aliminum copper tin these are all common metals - hope that helps
They have formed an oxide. An oxide is a compound of a metal and oxygen.