A sodium atom contains 11 protons and 11 electrons. A chlorine atom contains 17

Question

A sodium atom contains 11 protons and 11 electrons. A chlorine atom contains 17 protons and 17 electrons. What must occur for a sodium atom to obtain a charge of 1+ and a chlorine atom of 1-? * 1 point The sodium atom remains unchanged while the chlorine atom must gain one electron The sodium atom must lose one electron while the chlorine atom remains unchanged Neither atom must gain or lose electrons because the chlorine atom already had a charge of 1- and the sodium atom already has a charge of 1+ The sodium atom must lose one electron to the chlorine atom, which gains one electron

Explanation / Answer

And is D.

Na atom must lose one electron to acquire +1 charge and Cl atom must gain an electron to acquire -1 charge.

Na has 11 electron as 1s2, 2s2, 2p6,3s1 configuration, after losing an electron Na atom completes it's octet and convert Na+ ion. On other side Cl atom has 7 electrons in 3rd shell and require one electron to complete it's octet and has a strong tendency to gain electron. So Cl atom gains one electron to complete it's octet and convert Cl-1 ion.

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