![]() ![]() Let us begin by drawing the nucleus for the Lithium atom, for which we will have to calculate the number of protons and neutrons in the Lithium atom.įirst, we will calculate the number of protons Now, we can draw the Bohr model of the Lithium atom with the help of this information. ![]() Lithium has electronic configuration 2s 1.The information that we can derive from the above-mentioned Lithium box is as follows: Lithium belongs to group 1 and period 2 of the periodic table. The Lithium atom consists of 3 protons and 4 neutrons in the nucleus, and 3 electrons revolve around the Lithium atom in 2 shells i.e. ![]() The electron that absorbs energy jumps upwards while the electron that loses energy jumps downward The electrons are also capable of jumping up and down from their orbits into the higher or lower orbit, respectively. Similarly, the electrons housed in the shell farthest from the nucleus (here, the name of the shell may differ with the type of atom) have the highest energy and are called, valence electrons, while the shell is known as the valence shell the K shell are said to be in the ground state, similar to their assigned shell they also carry maximum energy out of all the electrons. The electrons located in the shell nearest to the nucleus i.e. The electron carrying capacity of the shell also increases outwards The innermost shell is assigned the lowest value which increases outwards i.e. The shells are also given names in numerological as well as alphabetical order. Usually, the smallest shell, located nearest to the atom has the least energy while the largest and farthest shell has maximum energy. These are pre-determined paths and have fixed energies associated with them due to which they are also known as energy levels.
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