Copper has an atomic number of 29 that means there are 29 protons in the nucleus of each copper atom that's what the atomic number the number of protons in an atom in the atom of a certain element if one copper atom contains 29 protons how many electrons are in 1 atom of copper?

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

What is the mass of each element in a 324.8 sample of co2

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .