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Science Bowl Question

šŸ“… NSB 2011 Set 4šŸŽ“ HSšŸ”„ Round 2#ļøāƒ£ Question 9🌟 BonusšŸ“ Multiple Choice

Which of the following has an electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁶?

W) Sodium ion
X) Chlorine
Y) Neon
Z) Calcium ion
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