1.

(a) The atomic number of sodium is 11. What is the number of electrons in Na+? (b) The atomic number of chlorine is 17. What is the number of electrons in Cl−?

Answer»

mic number of sodium is 11.It has 11 electrons.it LOSES ONE electron to from sodium ion.Then the number of electron in sodium ion is 11 - 1=10The ATOMIC number of chlorine is 17.The OUTERMOST orbit of chlorine atoms 7 electrons US present.It accepts one electron now is 18 and the number of protons is still 17HOPE IT HELPS YOU..................



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