1) The group number tells us a) the number of electrons is the outer shell b) the number of electron shells c) the number of electrons in the first shell 2) Moles is equal to a) Mass X Mr b) Mass/Mr c) Mr/Mass 3) Group 7 elements are known as a) The alkali metals b) The halogens c) The noble gases 4) Overall, atoms are a) Positive b) Negative c) Neutral 5) Avogadro's number a) 6.022 x 1023 b) 6022 x 1023 c) 6.022 x 10-23

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