Isotopes can represented in two ways. In the first way, the element's symbol is used with mass number at the upper left and atomic number written on the lower left of the symbol. In the other form of representation, the isotope name is written with a dash and mass number.
Given that the isotope has 92 protons. So the atomic number is 92.
The isotope has 143 neutrons
So the mass number = Total number of protons + Neutrons
= 92 + 143 = 235
Therefore, the two ways of representing the isotope is:
1. 
2. Uranium-235
Answer:
True
Explanation:
when a physical change occurs in a substance, the appearance might change but the chemical identity remains same. For example, if liquid water is heated, the water changes to gaseous form .This means the appearance of the water has changed, but the chemical identity remains same as both liquid water and steam has both oxygen and hydrogen as the component molecules or atoms.