Symbols ._(35)^(79)Br and .^(79)Br can be written, where as symbols ._(79)^(35)Br and .^(35)Br are not acceptable. Answer briefly.

Symbols ._(35)^(79)Br and .^(79)Br can be written, where as symbols ._

1.	Symbols ._(35)^(79)Br and .^(79)Br can be written, where as symbols ._(79)^(35)Br and .^(35)Br are not acceptable. Answer briefly.
Answer» Solution :The compostion of any atom can be represented by USING the NORMAL element symbol X with superscript on the left side as the mass number A and subscript Z on the left side as atomic number (ie) `._(Z)^(A)X`. Hence , the symbols `._(79)^(35)Br and ._(35)Br` are acceptable.