Question

107. The lightest noble gases, such as helium and neon, are completely inert—they do not form any chemical compounds whatsoever. The heavier noble gases, in contrast, do form a limited number of compounds. Explain this difference in terms of trends in fundamental periodic properties.

Answer 1

Explanation:

Noble gases are group O elements and their atomic structure ensures that they are stable. All their orbitals are completely filled with electrons therefore they do not undergo reactions with other elements.

• Heavier noble gases are able to form a range of compounds due their sizes.
• Elements form compounds by exchanging or sharing of their outermost shell electrons called the valence electron.
• Every atom has specific energy required to remove electrons from them. The energy is known as the ionization energy.
• In bigger atoms which have large radius, the outermost electrons have low ionization energy which makes them easy to remove.
• The ionization energy depends on the nuclear charge, the more the charge the higher the ionization energy. Down a group the nuclear charge and ionization decreases.
• As we go down the inert group, the ionization energy of outer shell electrons become very low. This makes the electrons available to take part in chemical reactions.

Learn more:

Noble gas brainly.com/question/10874792

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