They bound using ionic bounding, the metal gives away electrons and the non-metal receive, and since electrons are negative in charge the metal becomes positive and the non-metal negative this makes them attract each other, that's what ionic compounds are mostly hard. They bound because the "aim" for an atom is to get an full outer shell. the group number will tell you how many outer electrons it has (don't get fooled by some periodic tables where all the rows are labeled it is actually just the rows which "stands up" you can see this in the other will normally say it next to themex: Fe(iii)= three outer electrons.) and the outer shell normally want 8 electrons.
ex:
Li F
Group 1 Group 7
Li+ F-
Do you mean 'why do metals and nonmetals react together?' Well here's the answer for the Q I think you requested: Not all metals and nonmetals react. Some nonmetals like the nobles gases (elements like helium, neon, argon, krypton, xenon) are very unreactive and won't react with metals. But some metals and nonmetals react to form an Ionic compound because they are more stable once reacted to form a product.
Ionic bonds are formed between atoms with a large electronegativity difference. Electronegativity refers to the atom's ability to attract electrons in a bond. &Since metals are not electronegative and non-metals are, ionic compounds form between metals and non-metals.
However not all metals and non-metals react to form ionic compounds. There are exceptions like AlCl3.
Electro-positive elements are on one side of he chart and electro-negative elements are on the other. Because of the electron state of the different atoms. Electro-positive and electro-negative on the atoms attract each other and, when in conjunction, function to trade electrons to balance out their respective states.
Atoms of all elements, except the noble gases, are reactive.
It is an electrostatic attraction between ions.
there are many non metals that are very very reactive. some are even more reactive than some certain metals. there are no exact answers to that but according to me, it should be fluorine. HOPE THIS PIECE OF INFORMATION PROVES TO BE USEFUL
Alkali metals
no because if the metals were reactive then they would react with elements in the air non reactive metals are found in there native state like gold and silver.
The most reactive metals (those in the first group of the periodic table) are called Alkali metals.
Yes, iron is more reactive than calcium as iron is a metal and generally metals are more reactive than non-metals and calcium is a non-metal.
The most reactive non metals are Halogens which may combine most of the metals as well as non metals.
the most reactive (non-metals) group in the periodic table is GROUP 17+they are all reactive
Gold and platinum are less reactive metals but not absolutely non-reactive.
Gold is a less reactive metal but not non-reactive; all metals are reactive.
Atoms of non-metals usually gain or share electrons when they react with other atoms.
Alkali metals are most reactive metals. Halogen family comprises of highly reactive non-metals.
Group-17 are most reactive non-metals. They form halogens.
Alkali metals
Hydrogen
Non metals usually form covalent bonds with other non metals and ionic bonds with reactive metals.
The most reactive non-metals are the halogens, group 17.
Some are but the most reactive are also non-metals.