No. Both helium and argon are chemically inert.
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No, helium is not reactive because it is a noble gas and has a full outer electron shell, making it very stable. In contrast, argon is also a noble gas and is not reactive due to its full outer electron shell.
Among neon, argon, and helium, neon is the most reactive because it tends to form compounds with other elements under extreme conditions. Helium and argon are noble gases and are generally unreactive due to their stable electronic configurations.
No, argon is not more reactive than oxygen. In fact, argon is a noble gas and is very non-reactive, while oxygen is a highly reactive element that readily participates in chemical reactions.
Chlorine is more reactive than argon. Chlorine is a highly reactive element that readily forms compounds with other elements, while argon is a noble gas and is relatively inert and non-reactive.
Argon has a larger atom size compared to helium. This is because argon has more protons, neutrons, and electrons which contribute to its larger atomic size.
Magnesium is more reactive with oxygen than argon. Magnesium will react readily with oxygen in the air to form magnesium oxide, while argon is an inert gas and does not typically react with oxygen.