Shell example sentences

On moving down the group, for each successive member one extra shell of electrons is added and, therefore, atomic radius is expected to increase.In other words, the ionization enthalpy of the extreme left element in a period is the least and the electron gain enthalpy of the element on the extreme right is the highest negative (note : noble gases having completely filled shells have rather positive electron gain enthalpy values).It is due to the inability of ns2 electrons of valence shell to participate in bonding.As you have learnt earlier, the atomic number of hydrogen is Hence hydrogen has one electron in its K shell and it requires one more electron to fill the K shell.The atomic number of carbon is What would be the distribution of electrons in various shells for carbon? How many valence electrons will carbon have? We know that the reactivity of elements is explained as their tendency to attain a completely filled outer shell, that is, attain noble gas configureuration.The valence shell electronic configureuration of these elements is ns2np The inner core of the electronic configureuration of elements in this group also differs.We have also studied about the filling of electrons into different subshells, also referred to as orbitals (s, p, d, f ) in an atom.Elements in the same vertical column or group have similar valence shell electronic configureurations, the same number of electrons in the outer orbitals, and similar properties.You will find maxima at the noble gases which have closed electron shells and very stable electron configureurations.Their valence shell electronic configureuration is ns2np1-6(except for He).House number 12 turned out to be nothing but a burned-out shell, the roof gaping, the windows boarded-up.In the case of carbon, it has four electrons in its outermost shell and needs to gain or lose four electrons to attain noble gas configureuration.He would play for hours with a selection of toys, ping-pong balls, marbles, rubber fruit, and a terrapin shell that I had brought back from his native marshes.) Mistress Mary, quite contrary, How does your garden grow? With cockle shells and silver bells And pretty maids all in a row.Elements of the same group have similar valence shell electronic configureuration and, therefore, exhibit similar chemical properties.