The reactions of an element depend upon the arrangement of electrons in the outer shell of its atoms.
Atoms ‘want’ a full outer shell and so metals lose an electron, and non-metals gain one to complete.
Noble gases (group 8) lack of reactivity because they already have a full outer shell of electrons.
As we move the alkali metals (group ) in the periodic table the reactivity increases. This is because the greater the number of shells, the the outer shell is from the nucleus. Therefore the easier it is for an electron to be . As we move the halogens (group ) in the periodic table the reactivity increases. This is because the fewer the number of shells, the the outer shell is to the nucleus. Therefore the easier it is for an electron to be . This is because the electrostatic force between the nucleus and the electron is stronger when there is little separation.
As we move the halogens (group ) in the periodic table the reactivity increases. This is because the fewer the number of shells, the the outer shell is to the nucleus. Therefore the easier it is for an electron to be . This is because the electrostatic force between the nucleus and the electron is stronger when there is little separation.
This is because the electrostatic force between the nucleus and the electron is stronger when there is little separation.
