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The outer shell of nickel is not full. Nickel has an electron configuration of 4s2 3d8, so its outer shell has two electrons which is not the maximum it can hold (which would be 8).
Insulator.
Eight valence electrons would complete the out shell. If the outer shell was complete it would still be called the same thing, however the charges would be different.
Strontium is an element (38Sr) in period 5 with 38 protons, and being neutral it has 38 electrons also.However, also 37Rb- ion would have 38 electrons, but with only 37 protons in period 5.
Atomic number is the number of protons. In a neutral atom, the number of protons is equal to the number of electrons. So, in your example, the number of electrons in this atom is 14. The first energy shell can take 2 electrons, the second energy shell can take 8 electrons, and the third energy shell can take 18 electrons. If there are 14 total electrons, 10 would be found in the first two energy shells, leaving 4 for the third energy shell.
The nuclear charge of antimony (Sb) is 51. The nuclear charge of an atom corresponds to the number of protons in an atom, given by the atomic number.
Calcium has a full 4s sublevel, but does not have a full "outer shell", per se, because it is not a noble gas.
The outer shell of nickel is not full. Nickel has an electron configuration of 4s2 3d8, so its outer shell has two electrons which is not the maximum it can hold (which would be 8).
There are four electrons found on the outer shell of a atomic structure of tin. They are in a group of four.
Beryllium has 2 outer shell electrons. Its full electronic configuration is:- 1s2, 2s2
1 atom of the element, carbon, would have 4 electrons in its outer most shell. It's electron configuration is 1s2 2s2 2px1 2py1. 2 is the outer most shell, so there are 4 electrons in shell 2.
Magnesium has a total of 12 electrons. The electron configuration would be 1s2 2s2 2p6 3s2. Therefore, 2 electrons in it's outer shell.
Chlorine has 17 electrons, distributed in the following way: 2 in first shell 8 in second shell 7 in third (outer) shell Therefore Chlorine has 7 electrons in its outer shell.
Noble gases have a full outer shell, meaning that they have no valence electrons and have 8 electrons in their outer shell. If the outer shell is full they do not need electrons, so they would not want to bond with another element to form a compound.
Sulfur has 6 outer shell electrons, as do all other atoms in column 16 of a wide form Periodic Table, in the usual chemical meaning. A physicist, especially a spectroscopist, might well consider only the 3p electrons of sulfur the outer shell, since the 3s electrons have a detectably lower energy level. On that view, sulfur would contain 4 outer shell electrons.
4 to fill the 2p shell
Insulator.