Complete the electron configuration for the following ions (just like the atoms, but have lost or gained...?
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Answer:
Hello Kevin Smith, A. Be(2+) has lost 2 electrons. Its electronic configuration is: 1s2. (4-2 = 2 electrons) B. K(1+) has lost 1 electron. Its electronic configuration is: 1s2 2s2 2p6 3s2 3p6. (19-1 = 18 electrons) C. S(2-) has gained 2 electrons. Its electronic configuration is: 1s 2s2 2p6 3s2 3p6. (16+2 = 18 electrons) I hope you find this helpful, Good luck.
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Other answers
Hello Kevin Smith, A. Be(2+) has lost 2 electrons. Its electronic configuration is: 1s2. (4-2 = 2 electrons) B. K(1+) has lost 1 electron. Its electronic configuration is: 1s2 2s2 2p6 3s2 3p6. (19-1 = 18 electrons) C. S(2-) has gained 2 electrons. Its electronic configuration is: 1s 2s2 2p6 3s2 3p6. (16+2 = 18 electrons) I hope you find this helpful, Good luck.
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