Question

4. why the inert gases was discovered lately​

Answer 1

Explanation:

Thecomponds of noble gases were discovered late because most elements were discovered through their reactivity with other elements, typically with oxygen, it was difficult for scientists to work with a substance that seemed to have little or no chemical properties based on the lack of reactivity.

Answer 2

Answer:

Chemical inertness of lighter noble gases, i.e., He, Ne and Ar.

rare abundance of comparatively reactive noble gases, i.e., Kr, Xe and Rn

Explanation: