Generally the noble gases, however xenon (Xe) has been found to create compounds with other elements, most often with F in XeF8
why helium does not react with other elements to form compounds
No.
No. Kryptonite is a nobel gas, and doesn't react with any other elements.
There are very many elements which will do that.
All of them tend not to react with each other until you get lower down the group
what happens to the properties of elements when they react with each other element
Neon does not react with other elements.
Selenium react with the majority of other chemical elements.
Americium is a very reactive metal and can react with the majority of other chemical elements.
why helium does not react with other elements to form compounds
Nobel gasses.
No.
Americium is a reactive metal and can react with the majority of other chemical elements.
No. Kryptonite is a nobel gas, and doesn't react with any other elements.
There are very many elements which will do that.
Yes, americium is a reactive element.
The activity of an element is its ability to react the easier an element reacts with other elements the higher its activity is.