Question

One of the of sulfur is represented as sulfur-35 or S- 35. What does the number 35 signify?

Answer 1

The mass number of an isotope of sulphur i.e number of neutron has increase changing it from 32 to 35 bt the atomic number remains the same i.e 16
hope this helps*winks*

Answer 2

35 is the mass number of this isotope of Sulphur.