Question

neon atom can exist freely in nature but sodium atom can't why​

Answer 1

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The reason is stability. As a general rule, when a system changes, it tends to go towards stability. After stability is reached, there are no more changes. Chemical reactions between individual atoms happen because atoms must have 8 electrons in their outermost energy level in order to be stable. Since most atoms have less, they are not stable as single atoms and form all kinds of compounds to overcome this.

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Answer 2

Neon atoms can freely exist in nature. However, the Sodium atom cannot freely exist in nature. Below are the reasons for it:

• We know that the Neon atom is one of the Noble Gases.
• The electronic configuration of this atom is 2,8. Since there is a total 8 number of electrons present in the last shell which is also known as the valence shell, the Neon atom is termed a Noble Gas.
• This is following the Octet Theory. This theory states that the presence of 8 electrons in the valence shell makes the atom highly stable, thus preventing the atom from reacting with other atoms or elements. Hence, Neon exists on the surface of Earth in a free state.
• Whereas, Sodium atom's electronic configuration shows 2,8, and 1. The presence of 1 electron in the valence shell confirms the instability of the atom.
• Hence, the Sodium atom can react with other elements or atoms or compounds present in nature to balance the electronic configuration.
• This is the reason why Sodium fails to exist freely in nature.

Thus, the above reasons justify that Neon can freely exist on Earth's surface whereas Sodium atom cannot exist freely in nature.

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