NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It become negatively charged
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It become positively charged
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none
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None of the above
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Detailed explanation-1: -Sodium loses an electron, leaving it with 11 protons, but only 10 electrons. Since it has 1 more proton than electrons, sodium has a charge of +1, making it a positive ion.
Detailed explanation-2: -So, when an atom of sodium loses one electron from the outer shell, a positive sodium ion is formed.
Detailed explanation-3: -A sodium atom has 11 protons and 11 electrons. It has a neutral charge. The Na+ ion is formed from the loss of one electron. Because it has lost an electron, it has more protons than electrons; the overall charge of the sodium cation is positive.
Detailed explanation-4: -As electrons carry negative charge, the loss of one electron will give sodium a charge of 1+. It can then make ionic bonds with negatively charged ions.
Detailed explanation-5: -Therefore, an atom that loses electrons becomes a positively-charged ion called a cation.