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(1) What is the symbol of mass 50.94151?
(2) What is the symbol of mass 39.09831?
(3) What is the symbol of mass 10.81?
(4) What is the symbol of mass 39.9481?
(5) What is the symbol of mass 40.0784?
(6) What is the symbol of mass 28.085?
(7) What is the symbol of mass 9.01218315?
(8) What is the symbol of mass 18.99840316?
(9) What is the symbol of mass 4.0026022?
(10) What is the symbol of mass 44.9559085?