PLZ SOMEONE HELP ASAP PICTURE IS ABOVE! I WILL GIVE BRANLIEST Examine the molecules below.

Circle the molecules that can also be classified as compounds.

the last one is an element rest all are compounds

Explanation:

compounds are 2 or more different atoms that are joined chemically in a fixed proportion

hope it helps : )

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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