What enabled Moseley to determine the number of electrons in atoms of particular elements? A. He measured the mass of a given volume of the element. B. He measured the temperature of the element in an

What enabled Moseley to determine the number of electrons in atoms of particular elements? A. He measured the mass of a given volume of the element. B. He measured the temperature of the element in an ice bath. C. He measured the different wavelengths emitted by the electrons of the element using x-rays. D. He measured the voltage passing through an element connected to a circuit.