A molecule is stable when all the orbitals are filled with electrons. 8 or 18 is dependent on which orbitals are being utilized. If one uses s and p orbitals,,,one would say that 8 has been achieved.......such as the oxygen anion. We refer to this as achieving a Noble Gas Configuration If one was to utilize d orbitals such as in zinc.......we would then say we have 18 electrons in the outer shell...........and achieved a pseudo-Noble Gas configuration. Hope this helps. Dr Jim Romano CEO Orgoman.com/CEO Romano Scientific New York
There are different electrons in the outer shell of each element.
No atom can hold 18 electrons in its outer energy shell - there is the valence rule, stating that the maximum for the outer shell is 8 electrons.
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
No element can have more than 8 electrons in its outermost shell, as the maximum number of electrons that can occupy the outermost shell is 8 due to the octet rule. Elements may have more than 8 electrons in higher energy levels, but those do not determine the element's chemical properties.
The outer shell (N=4) of the copper element has 2 electrons.
The element with 6 outer shell electrons is carbon. Carbon has 4 electrons in its outer shell and 2 electrons in the shell before that, totaling 6 outer shell electrons.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
Antimony has 5 valence electrons.
The outer shell (N=4) of the copper element has 2 electrons.
There are different electrons in the outer shell of each element.
Helium is the only noble gas that does not have eight electrons in its outer shell. It has only two electrons in its outer shell.
No atom can hold 18 electrons in its outer energy shell - there is the valence rule, stating that the maximum for the outer shell is 8 electrons.
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
Elements in Group 1 of the periodic table have one electron in their outer shell, while elements in Group 2 have two electrons in their outer shell. This configuration makes these elements more stable and likely to form ions with a positive charge by losing these outer electrons to achieve a full outer shell.
The electrons in the outermost shell is called as valence electron. These electrons are free and they are involved in bonding reactions.
No element can have more than 8 electrons in its outermost shell, as the maximum number of electrons that can occupy the outermost shell is 8 due to the octet rule. Elements may have more than 8 electrons in higher energy levels, but those do not determine the element's chemical properties.
Curium, as an actinide element, has 4 electrons in its outermost shell (shell 7).