NEETChemistryStructure of Atom
Give reason why 79 Br 35 and 79 Br can be written, whereas symbols 35 Br 79 and 35 Br are not acceptable?
Options
- AThe first symbol follows the correct format of element symbol followed by mass number and atomic number, while
- B79 Br can be written but 35 Br cannot be written because the atomic number of an element is constant, but the
- CThe first symbol correctly identifies the isotope of bromine with 79 protons and 35 neutrons, while the second
- D79 Br 35 and 79 Br are correct symbols, whereas 35 Br 79 and 35 Br are not acceptable because they represent i
Correct answer
B. 79 Br can be written but 35 Br cannot be written because the atomic number of an element is constant, but the
Step-by-step solution
Correct Option is : (B) 79 Br can be written but 35 Br cannot be written because the atomic number of an element is constant, but the atomic mass of an element depends upon the relative abundance of its isotopes. Hence, it is necessary to mention the atomic mass of an element