A component’s electrons are positioned in shells across the nucleus. The variety of electron shells a component can have is the same as its atomic quantity. The periodic desk arranges components by atomic quantity, due to this fact a component’s place on the periodic desk signifies what number of electron shells it has. The variety of electrons in every shell is decided by the shell’s power stage. The primary shell can maintain as much as two electrons, the second shell can maintain as much as eight, and so forth.
Realizing what number of electrons are in a component is vital as a result of it helps to find out the ingredient’s chemical properties. For instance, the variety of electrons in a component’s outermost shell determines its valence, which is its means to mix with different components. Components with a full outermost shell are unreactive, whereas components with an incomplete outermost shell are extra reactive.
