Advertisements
Advertisements
Question
What is isotope? Give an example.
Advertisements
Solution
Isotopes are atoms of the same element having the same atomic number Z, but different mass number A. For example, hydrogen has three isotopes and they are represented as \[\ce{_1^1 H}\] (hydrogen), \[\ce{_1^2H}\] (deuterium), and \[\ce{_1^3H}\] (tritium).
APPEARS IN
RELATED QUESTIONS
The nucleus is approximately spherical in shape. Then the surface area of nucleus having mass number A varies as ______.
A radioactive nucleus (initial mass number A and atomic number Z) emits 2α and 2 positrons. The ratio of a number of neutrons to that of protons in the final nucleus will be ______.
A radiative element has N0 number of nuclei at t = 0. The number of nuclei remaining after half of a half-life (that is, at time t = `1/2 "T" _(1/2)`).
Define the ionization potential.
What is isobar? Give an example.
Define atomic mass unit u.
What is binding energy of a nucleus? Give its expression.
Calculate the energy equivalent of 1 atomic mass unit.
Explain the variation of average binding energy with the mass number using a graph and discuss about its features.
Show that the mass of radium \[\ce{^226_88Ra}\] with an activity of 1 curie is almost a gram. Given T1/2 = 1600 years.
