Which element has the symbol O?, Gold, Oxygen, Iron, Sodium, What is the atomic number of Oxygen?, 6, 7, 8, 9, Describes atomic number as __________, As the number of protons in an atom., as the number of the element symbol, the same as element name, the element outside the box, Why are elements arranged according to atomic number in the periodic table?, To make the table colorful, To show increasing number of protons, To group heavy elements only, To separate metals from nonmetals, Which statement BEST shows appreciation of the importance of elements?, Elements are only useful to scientists, Elements help explain how medicines, gadgets, and materials work, Elements are hard to understand, Elements have no effect on daily life

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