Question

Which element is least reactive?
Write about it.

Answer 1

Gold, silver, titanium, palladium, platinum…. is the least reactive metal and they are often called the noble metals 

Answer 2

Helium is the least reactive element in the reactive series. Helium is a noble gas. It's chemical symbol is He and it's atomic number is 2. It's boiling point is lowest among all elements. After hydrogen helium is the Most abundant element.

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