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An iron atom has 26 protons in its nucleus, while a sodium atom has 11 protons. Because the number of protons determines an element's identity, iron and sodium are separate elements due to their differing numbers of protons.
When sodium and chlorine form an ionic bond, sodium loses an electron to achieve the electron configuration of neon (2,8), while chlorine gains an electron to achieve the electron configuration of argon (2,8,8). This results in the formation of a sodium ion (Na+) and a chloride ion (Cl-) which are attracted to each other by electrostatic forces to form an ionic bond.
An atom of sodium has one valence electron. When a sodium atom loses this electron to another atom, it becomes a sodium ion.
Argon has the same electron arrangement as other noble gases such as Neon and Helium. Chlorine has the same electron arrangement as other halogens such as Fluorine and Bromine. Sulfur has the same electron arrangement as other chalcogens such as Oxygen and Selenium. Potassium has the same electron arrangement as other alkali metals such as Sodium and Lithium.
hey there buddie it because its an atom of a hydrogen molecule and its quite an angry felllo that sodium eh , whereas the neon is more calm and relaxed when it reacts