Green_Eyez23

This might be a really stupid question, how do you know what an element is not on earth if you’ve never encountered it before? What properties do you follow? Like is it solid like gold? Is it a gas like nitrogen(or liquid at crazy cold temperatures)

Can you give an example of an element which gets heavier as it gets fewer in how they are made in nature? I need something tangible to understand your explanation.

Thank you for that explanation. Your work is tremendously smarter than my brain can understand but I find it fascinating.