There are many elements which have no unpaired electrons in their outer shells.
The Noble gasses all have closed shells of valence electrons.
The alkali earth metals (Beryllium, Magnesium, Calcium etc) also have no unpaired electrons, although their outer shell is not entirely full.
244 An interesting answer...I would have thought that they all have 2 electrons in the outer shell in their ground state.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
There are different electrons in the outer shell of each element.
No element has this as the ground state. Gadolinium has the right number of electrons but its ground state is [Xe] 4f7 5d1 6s2. The second number in each group should be a superscript.
It has a full outer shell of electrons.
There are no unpaired electrons in an unexcited neutral mercury atom; its outer shell contains only two s electrons that are paired, as are all the electrons in the filled inner shells of the atom.
244 An interesting answer...I would have thought that they all have 2 electrons in the outer shell in their ground state.
A fluorine atom has seven unshared electrons in its outer most shell (valence shell).
Bromine has 7 electrons in its outer shell.
An element that has two outer electrons is carbon. Carbon would not use the energy to gain six more electrons when it can easily get rid of the two outer electrons.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
Because it contain 3 unpaired electrons in its outer most orbit which incolve in bond formation
There are different electrons in the outer shell of each element.
Carbon had 4 valence (outer Shell), unpaired electrons waiting for another element to share one of its valence electrons with it. The simplest case would be cabon bonding to Hydrogen, which has one valence electron. To make a sucessful pair and hence a bond, one unpaired electron from Hydrongen, and one Unpaired electron from Carbon covalently bond to form one PAIR of electrons and hence (and as my grammer shows, repeticiously) a bond.
Outer electrons
The outer shell (N=4) of the copper element has 2 electrons.
The outer shell (N=4) of the copper element has 2 electrons.