Chemistry, 25.12.2020 17:30 ptrlvn01

One isotope of a nonmetallic element has mass num- ber 127 and 74 neutrons in the nucleus. The anion derived from the isotope has 54 electrons. Write the symbol for this anion.

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One isotope of a nonmetallic element has mass num- ber 127 and 74 neutrons in the nucleus. The anion...

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