Al, An element with 13 protons, K, An element with atomic number 19, 27, Mass number of atom with 12 protons & 15 neutrons, 26, What is the atomic number of this element, 10, If mass number is 18 amu, how many neutrons does this atom have?, Ne, An element with 10 protons, Co, An element with atomic number 27, 15, Mass number of atom with 7 protons and 8 neutrons, 5, What is the atomic number of this element?, 24, If mass number is 44 amu, how many neutrons does this atom have? , 3, Assuming the atom is neutral in charge, how many electrons does this atom have, 38, Assuming the atom is neutral in charge, how many electrons does this atom have?.

Atomic Structure

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