At the center of all atoms is the ____ The nucleus contains protons and ____. Protons are the ____ charged particles. Atoms of different elements have ____ number of protons in the nucleus.​ Uncharged(neutral) atomic particles are called ____ The electrons have ____ charge. The electrons ____ the nucleus. THE MASS OF THE ATOM IS DUE TO THE ____. THE SIZE OF THE ATOM IS DUE TO THE ____.​ The atomic number of an element is the ____ its atom contains. Electrically neutral atoms have ____ for every proton. The total number of atoms in K2CO3 is ____. The total number of atoms in 3K2CO3 is ____ In H2SO4, the subscripts are ____ In 2H2SO4, THE COEFFICIENT IS ____

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