Iſ a cation X'
contains 20 protons and 25 neutrons. Number of electrons in X'will be (A) 23 (B) 17 (C) 20 (D) None O Option 1 O Option 2 O Option 3 O Option 4 Question 21 3 points The atomic masses of two elements Pand Q are 40 and 80 respectively. Ifx g of P contains y atoms, how mamuntome are recent in 2 of 2
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