How many electrons in 2.9 grams of copper?

Answer 1

i havent got an elements table in front of me but here is how you do it:

figure out how many moles is 2.9 grams of copper by using molecular wieght, then simply multiply so: No of moles* No of atoms in one mole* number of electrons in one atom of copper (which is the same as the No of protons...)

Answer 2

To find the number of electrons in 2.9 grams of copper, you first need to determine the number of moles of copper using its Atomic Mass. Copper has an atomic mass of 63.55 g/mol. Next, you can use Avogadro's number (6.022 x 10^23) to calculate the number of copper atoms, and since each copper atom has 29 electrons, you can multiply the number of atoms by 29 to find the total number of electrons.