Question

3. Write the nuclear symbol and hyphen notation

for each of the following isotopes:
a. mass number of 28 and atomic number of 14
b. 26 protons and 30 neutrons

Answer 1

A. Si-28

B.Fe-56

Step-by-step explanation:

Answer 2

a. ²⁸₁₄Si, Silicon-28

b. ⁵⁶₂₆Fe, Iron-56

Step-by-step explanation:

a. For the nuclear symbol, the mass number of the isotope is on top while the atomic number is at the bottom. For example, ²⁸₁₄Si. The hypen notation for the isotope is Silicon-28 based on the atomic number and mass number.

b. The mass number of the isotope is equal to the sum of protons and neutrons = 26+30 = 56. The atomic number is the number of protons = 26. Thus, the nuclear symbol is ⁵⁶₂₆Fe and the hypen notation is Iron-56.