1: copper has an atomic number of 29 that means there are 29 protons in the nucleus of each upper atom. that's what the atomic nuber is; the number of protons in an atom of a ceartain element if one copper atom contains 29 protons, how many electrons are there in 4 atoms of copper? 2: copper has an atomic number of 29 that means there are 29 protons in the nucleus of each upper atom. that's what the atomic nuber is; the number of protons in an atom of a ceartain element if one copper atom contains 29 protons, how many copper atoms could you make out of 87 protons?

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation: