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Which of these elements is a noble gas? hydrogen (h) barium (ba) nitrogen (n) krypton (kr) bromine (br)
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Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass
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Turbo the snail moves across the ground at a pace of 12 feet per day. if the garden is 48 feet away, how many days will it take for the snail to get there?
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Which of these elements is a noble gas? hydrogen (h) barium (ba) nitrogen (n) krypton (kr) bromine...
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