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Use a periodic table to find symbol,atomic mass number for each of the following elements need help thank you

Use a periodic table to find symbolatomic mass number for each of the following elements need help thank you class=

Respuesta :

cwalker101
(*KEY*
Element = Symbol, atomic mass #)

Calcium = Ca, 20
Sodium = Na, 11
Carbon = C, 6
Hydrogen = H, 1
Oxygen = O, 8
EmilysBrain
Element | Symbol  |  Atomic Number  |  Atomic Mass
Calcium -    Ca                  20                     40.078
Sodium -     Na                  11                     22.990
Carbon -      C                     6                     12.011
Hydrogen -   H                    1                      1.008
Oxygen -      O                    8                      15.999