Brian is given an unknown element that is bright when sunlight hits it. he has a hammer and an electrical source. if he attached the electrical source, what might happen if the substance is a metalloid?

a time line cause it goes from 685 to 978

substitution is the answer in this case

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds