how many elestrons are needed in the outer shell of an atom so that it is stable?

Answer 1

As a rule of thumb it's 8, in rotation of motion of the atom.

Answer 2

4 electrons are needed to fill the outer shell of carbon. because of the fact of this it could sort 4 hydrogen/different atom bonds. An occasion is methane. TIP: The atoms interior the 1st column of the periodic table all have one million valence electron. the 2d column all have 2 valence electrons. The 0.33, that is genuinely the only with Boron on the appropriate, has 3 valence electrons. you spot the trend =-). only subtract the kind of valence electrons the atom has from 8 (that is what number electrons an atom desires to fill that is outermost shell). Carbon is interior the fourth column. So 8 - 4 = 4

Answer 3

An atom has the same number of electrons as protons. If it has more or fewer, it's not an atom, it's an ion. Quantum mechanics provides ways of calculating their positions and energy levels. Differences between these energy levels defines the spectral characteristics of the element. But none of this affects the stability of the atom. That's determined almost exclusively by the nucleus. Look at a table of isotopes (such as the reference). Pb208 is the largest isotope listed that's stable.

Answer 4

Most often it's 8. The only atoms satisfied with less than 8 are hydrogen and helium, which each only want two. Heavier elements (above argon) can handle up to 18, but their chemistry also starts to get more complicated and it doesn't matter as much whether they have full outer shells.

Answer 5

As many as will fill the shell, a different number for each row in the periodic table. The noble gases in the rightmost column have their outer shells filled so they don't combine with other atoms; as you move from right to left the elements will have one, then two, then three, etc holes in their shells looking for electrons from other atoms to fill by means of chemical combinations.

As I remember, elements on the left can more easily donate one or two electrons than fill up their shells with more, but don't quote me on that!

Answer 6

That depends on the atom


Most atoms prefer not to be (are unstable) by themselves and so they bond with other atoms in ways that make them more stable.

2) Each different type of atom (element) has to form a certain number of bonds to get stable.

Answer 7

having 8 electrons in its outer shell gives an atom "noble gas", or a stable status. (all of the elements in the far right column of the periodic table are noble naturally)

Answer 8

Eight (with two notable exceptions). Atoms lacking this number of valence electrons can share electrons with other atoms, forming a bond that satisfies the so-called octet rule.

Answer 9

The number of electrons in the atoms depends on what the mass is in the nucleous.
Basicaly each electron balance their energy with an equivalent energy of the proton;However, sometimes the nucleous has more neutron mass and proton mass so its not always the case

Answer 10

atoms having the outer cofiguration by 2(n*n)
where n is principle quantum no
means for 2,8,18,etc