1.The number of copper ions in 3 lumps of copper is 2.8*10^22. How many electrons are presentin the sample.How much do they contribute to their mass.(Cu=29 mass of Electron=9.11*10^-28g)
The number of copper ions in 3 lumps of copper is 2.8*10^22
1.The number of copper ions in 3 lumps of copper is 2.8*10^22. How many electrons are presentin the sample.How much do they contribute to their mass.(Cu=29 mass of Electron=9.11*10^-28g)