An ion formed from an atom has a 4+ charge. The number of electrons present in the ion is 21 and the number of neutrons is 30. Identify the element.
Question
An ion formed from an atom has a 4+ charge. The number of electrons present in the ion is 21 and the number of neutrons is 30. Identify the element.
Solution
To identify the element, we need to find the atomic number, which is the number of protons in an atom.
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Since the ion has a 4+ charge, it means it has 4 less electrons than protons.
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Given that the number of electrons is 21, the number of protons must be 21 + 4 = 25.
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The atomic number of the element is therefore 25.
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Looking at the periodic table, the element with atomic number 25 is Manganese (Mn).
So, the element is Manganese.
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