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50. Ionic mass of X3-is 31 g mol-, lt has 16 neutrons. Thus, number of electrons in X3-isA) 15B) 16C) 17D) Is |
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Answer» The Atomic mass = 31so, no..of proton = 31-16 = 15 , now in neutral atom no. of P = no. of e- but since it has -3 charge so, no. of e- = 15+3 = 18 |
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