Which of the following statements is/are correct?
Statement I: Sodium atom loses one electron to form a sodium ion.
Statement II: Sodium ion has a negative charge.
Only Statement I is correct.
A sodium atom has one electron in its outermost shell. To attain a stable noble-gas configuration, it loses this single valence electron, confirming that Statement I is correct.
When a neutral atom loses an electron, it has more protons than electrons, so the resulting ion carries a positive charge. The sodium ion is therefore written as Na+, which is a cation, not an anion.
Hence, Statement II, which claims the sodium ion has a negative charge, is incorrect, and only Statement I is correct.
Hence, the correct answer is Only Statement I is correct.
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