a faculty thermometer has 90.5°c and 0.5°c marked as the upper and lower fixed point respectively. what is correct temperature .if this faculty thermometer reads 15.5°c

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material