60. Atoms of different elements have A.Same atomic number and same electronic configuration B.Different atomic number and same eletronic configu-ration C.Different atomic number and different number of valence electrons D.Same number of electrons and neutrons
Answer: Option C Solution: The atoms of different elements have different numbers of electrons, protons, and neutrons. Every element is unique and has an atomic number. That number tells you the number of protons in every atom of the element. The atomic number is also called the proton number.
