Correct: He - Helium, H - Hydrogen, O - Oxygen, Li - Lithium, K - Potassium, Na - Sodium, N - Nitrogen , S - Sulfur, Ne - Neon, Incorrect: B - Beryllium, B- Bismuth, Al - argon, Ch - Chlorine, So - Sodium, Ph - Phosphorous, n - nitrogen, S - Silicon, Ni - Nitrogen,

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