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When an oxygen atom forms an ion, it gains two electrons What is the electrical charge of the oxygen ion? A. -1 B. -2 C. +1 D. +2
asked
Feb 15, 2017
Physics
high-school
2
answers
2
votes
231k
views
What number is exactly between 24 and 40
asked
Aug 27, 2016
Mathematics
middle-school
1
answer
4
votes
98.3k
views
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