name the atomic symbol for Helium, name the atomic symbol for Gold, name the atomic symbol for Boron, what is the number of protons in Carbon?, what is the element with the highest proton number in group 4?, how much does Argon weigh?, what does the group of an element tell us?, what does the period of an element tell us?, what element does Miss Armitage often use as an example?, what element has a mass of 119?, why are some elements no on the periodic table?, name an element that the mass is double the atomic number.

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