A very stable electron arrangement in the outer energ level is characteristic what?

Answer 1

A filled valence shell is a very stable electron arrangement in the outer energy level. Atoms undergo chemical reactions in order to achieve a filled valence shell, which is usually 8 electrons, but for hydrogen, helium, lithium, and beryllium it is 2 electrons.

Answer 2

stable state is the state of an atom when it attains noble gas configuration..........

in other words when its valence or outer most shell gets completed....

for example take the example of Nacl

the electronic configuration of sodium (at:mass=11) is 2,8,1

and the electronic configuration of chlorine (at mass=17) is 2,8,7

here in this state you see, Na after loosing one electron can be stable as it's outer most shell will get completed and , let's see who wants one electron........??????????? I guess chlorine is hungry , it wants one electron, to Na will give its eletron forever to chlorine .......

And thus NaCl gets formed and they both become stable........ this is what we call electrons gets stable.... and this is what you asked in the question..

Answer 3

Yes.
yes. Helium has only 2 valence electrons, which fully occupy the 1s orbital. The next one is Neon with 10 valence electrons, which fully occupy the 1s, 2s, and 2p orbitals, and so on. The lack of extra electrons or no deficit of electrons in the outermost shell is what make the element stable.

Answer 4

what does stable means? and i don't like some of the part of wikianswer.when you ask a question, the answer is wrong and shows another things that not belong to the question

Answer 5

the stable electrons in Group 18 is the noble gasses. and folks that is our answer!