plsss answer it fast
The atomic number of bromine (Br) is 35 and its atomic mass is 79.904.
a) What is mass number of Br?
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79.904 u
is the mass no. or Br...
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13
Answer:
Element Bromine (Br), Group 17, Atomic Number 35 , p-block, Mass 79.904. ☺
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