What is radioactive decay? - the spontaneous breakdown of an atom's nucleus n , What is spectroscopy? - indentifying chemicals by studying light the emit and absorb, What is physical constant ? - a quantity in nature that never changes , What is ground state? - the lowest energy state of a particle , What colors are ROY G BIV? - red, orange,yellow,green,blue indigo and violet , What are the ingredients in an atomic bomb? - enriched uranium or U-235, What is most abundant isotope of Calcium? - Ca -40, How many protons are in Oxygen? - 16, How many electrons does Magnesium have? - 12, How many neutrons does Cl-37 have? - 20,

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