Comprehension Check 6.3, P. 291
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Explain the difference between an element and a compound.
An element is made of only one type of atom; a compound is made of more than one type of atom.
the symbols for hydrogen, oxygen, and chlorine
H; O; Cl
a substance that is made of only one type of atom
element
the element with the lowest atomic number
hydrogen
the most abundant element in the universe as a whole
hydrogen
the densest element of all
osmium
the most abundant element in the earth's crust
oxygen
the most abundant element in your body
oxygen
the transuranium element that is the most abundant
plutonium
