Chemistry is Fun! Crossword Puzzle

QUESTIONS LIST: boron : it's a boring element, gold : it's that yellow shiny stuff that everyone likes, helium : put this in a balloon to make it float really high, compound : can only be multiple atoms, nucleus : has all of an atom except the negative parts, electron : they're all negative, ionic bond : this bond involves brackets, shell : contains only the negative part of an atom, lithium : they put this in some batteries, atomic mass : total weight of an atom, atom : contains protons, neutrons, and electrons, isotope : variant of a chemical element that differs in neutron number, element : can be a metal, metalloid or a nonmetal, group : it's also known as a family, molecule : can be a single atom or many, carbon : compress this really hard to get diamonds, nickel : it's a silver coin, iodine : it's salt (not sodium), oxygen : two of these molecules makes air we can breathe, period : the horizontal sections of the periodic table, proton : it is completely positive, covalent bond : this bond has no positive or negative numbers, potassium : there is a lot of this in bananas, radium : it's a rad...i, um, element