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Aymen
Answers (2)
1400=2^3×5^2×7 40=2^3×5 LCM(40,1400)=2^3×5^2×7 X=5^3×7(25×7)=175 X IS 175
An atom has the electron configuration of [Ar] 4s2 3d10*4p5 if its mass no is 80,what will its no of protons and neutronsbe?
