It has to either find an element that has enough electrons to share or it has to lose the 'extra' ones. Both actions produce ions.
A Fluorine atom has an atomic number of 9. Draw out the electron shell diagram for Fluorine. Is a Fluorine atom more likely to gain, lose or share electrons to fill its valence shell?
Selenium needs two more electrons.
The outermost occupied energy shell of an atom is the valence shell, and it varies depending on the atom. It can be determined by looking at the period the atom is in on the periodic table.
4 to fill the 2p shell
N2 is a molecules of an element because both atoms in the molecule have the same number of protons (7). A lone nitrogen atom is somewhat unstable as it needs 3 more valence electrons for a full outer shell. To fill this shell it shares electrons with another nitrogen atom.
8
it forms a covalent bond.
A Fluorine atom has an atomic number of 9. Draw out the electron shell diagram for Fluorine. Is a Fluorine atom more likely to gain, lose or share electrons to fill its valence shell?
No. Every atom wants to complete its valence shell. Since Hydrogen has one electron it only fills up half of the sorbital and needs one more electron to fill its shell. This means that the H atom will be very reactive because it wants to fill its valence shell.
There is a total of 8 electrons that are needed to fill outer shell of most atoms. An atom is the smallest unit of matter.
Each phosphorus atom requires three electros to fill its outer valence shell, giving the resulting ion the same electronic configuration as an atom of the next heavier noble gas, argon.
You can calculate the total capacity of an electron shell using the formula 2n2,... electron shell, it would need 10 electrons: 2 to fill the 1st shell and 8 to fill the2nd. ... In other words, in an atom with 20 electrons (which is the element calcium
Anion. Cation is an ion that loses one or more electron.
An Ionic bond.
A sodium atom has one electron outside a closed shell, and a chlorine atom lacks one electron to fill a shell. A sodium chloride molecule forms by ionic bonding, the ionization of sodium and chlorine atoms and the attraction of the resulting positive and negative ions.
Whenever the outside shell of the atom, or valence shell, is completely full with electrons. Ex: The noble gases are lucky enough to start out stable because they fill their outer shells.
Selenium needs two more electrons.