Question

What does it mean to say that some elements are reactive and form ions easily whereas others do not?

Answer 1

This is an oddly stated question, chemical reactivity of a compound or atom has to do with the ability of its electrons to interact with other compounds or atoms.

Answer 2

Does that answer your question?

Answer 3

You might want to look into ionization energies though, https://en.wikipedia.org/wiki/Ionization_energy there are tons of resources that can explain this.

First ionization states have a lot to do with electronegativity and trends in the periodic table

Answer 4

Anyways, if you are still confused inform me what is bothering you and I will try to explain it better.

Answer 5

Atoms except noble gases tend to form compounds.But less the no of e's easy the atom form a compound and become electronegative or electropositive readily but some need external energy to form compounds.

Answer 6

the external enegy is provided in the form of heat or a catylst

Answer 7

you want detailed explanation

Answer 8

ask me more if you want