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The sum number of neutrons and protons in radioactive isotopes of hydrogen is:

The sum number of neutrons and protons in radioactive isotopes of hydrogen is: Correct Answer 3

The​ correct answer is 3.

Important Points 

  • An atom of the same element having the same atomic number and different mass number are known as isotopes.
  • Isotope was discovered by Frederick Soddy.
  • Hydrogen has three main isotopes:
    1. Protium- 1H1
    2. Deuterium- 1H2
    3. Tritium- 1H3
  • Tritium is the radioactive isotope of hydrogen.
  • Atomic number of tritium is 1.

Key Points 

  • Tritium consists of one proton and two neutrons in its nucleus.
  • Mass number of tritium is 3(one proton + two neutrons).
  • The sum number of neutrons and protons tritium is 3.
  • Tritium is a rarely occurring isotope of hydrogen.
  • The half-life period of tritium is around 12.4 years.

Related Questions

Which of the following statements are true?
1. All radioactive elements decay exponentially with time.
2. Half-life time of radioactive elements is the time required for one-half of the radioactive atoms to disintegrate.
3. Age of the earth can be determined by radioactive dating.
4. Half-life time of a radioactive element is fifty percent of its average life period.
Select the correct answer:
Which one of the following statements is/are correct? a. The number of protons in a nucleus is called its atomic number. b. The total number of protons and neutrons constitutes its mass number.
Which of the following are true for an element? (i) Number of protons of an atom determines its atomic number (ii) Mass of an atom resides in its orbits (iii) Protons and electrons make the nucleons (iv) Elements can be defined by the number of protons they possess
Nuclear wastes is waste that contains radioactive material. Radioactive material is normally a by product of nuclear power generation. Radioactive waste is regulated by government agencies in order to protect human health and the environment. Radioactivity naturally decays over time, so radioactive waste has to be isolated and confined in appropriate disposal facilities for a sufficient period until it no longer poses a threat. Which of the following statements can be inferred from the paragraph?
Radon 222 এবং Radon-220 উভয়ই Radon এর আইসোটোপ। যদি Radon-222 এর নিউক্লিয়াসে 136 টি নিউট্রন থাকে তাহলে Radon-220 এর নিউক্লিয়াসে কতগুলো প্রোটন থাকবে? ( Radon-222 and Radon-220 are the isotopes of Radon. If Radon-222 has 136 neutrons then what will be the number of protons in the nucleus of Radon-220?)
Calcium has 20 electrons and 20 neutrons and Argon has 18 protons and 22 neutrons. What is similar between them?
What does the control rod (cadmium rod) do in a nuclear reactor? A. The fission absorbs excessive heat generated during the reaction and thus prevents excess temperature rise. B. Absorbs extra neutrons to control the chain reaction. C. Reduces the energy of neutrons so that they can be further used for the fission reaction. D. The chain produces the neutrons required for the fission reaction.
Consider the following statements.
In a nuclear reactor, self-sustained chain reaction is possible because
1. More neutrons are released in each of the fission reactions.
2. The neutrons immediately take park in the fission process.
3. The fast neutrons are slowed down by graphite.
4. Every neutron released in the fission reaction initiates further fission.
Which of these statements are correct?
The critical reasoning question is based on a short argument, a set of statements, or a plan of action. For each question, select the best answer of the choices given. Radioactive pollution is highly dangerous and has become a very important topic to be concerned about in today's scenario. Radioactive pollution is caused when radioactive byproducts of a nuclear reaction is dumped in the environment. This is contaminating the eco-system causing air, water and soil pollution. It can lead to cancer in humans when it comes in contact with the body. Given below are few options, select which isn't one of the effects of this on the humans.
If the number of protons and neutrons of an element is 13 and 14 respectively, then what’s the atomic number(Z) and mass number(A)?