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An element has an atomic number of 30. How many protons and electrons are in a neutral atom of the element? A. 30 protons, 30 electrons B. 15 protons, 15 electrons C. 60 protons, 30 electrons D. 30 protons,
asked
Jan 1, 2017
Chemistry
high-school
1
answer
3
votes
152k
views
19/20 as terminating decimal
asked
Mar 5, 2016
Mathematics
middle-school
1
answer
4
votes
127k
views
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