פסגה המניה לאשר air atomic and mass numbers z a יכול לעמוד מרתק משטח
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An element zS^A decays to 85R^222 after emitting 2alpha particles and 1beta particle. Find the atomic number and atomic mass of the element S.
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Write the complete symbol for the atom with the given atomic number (Z) and atomic mass (A). (i) Z = 17 , A = 35(ii) Z = 92 , A = 233(iii) Z = 4 , A = 9
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