The radioactivity of an element becomes 1/64
Webb23 mars 2024 · The half-lives of many radioactive isotopes have been determined and they have been found to range from extremely long half-lives of 10 billion years to extremely … Webb5 aug. 2024 · The activity of a certain radioactive element drops to 1/64 of its initial value in 30 second. Its half life is : (a) 6 sec (b) 5 sec (c) 4 sec (d) 2 sec bitsat 1 Answer +1 …
The radioactivity of an element becomes 1/64
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WebbRadioactivity is an atomic property due to reactions taking place in the atomic nucleus, which in certain isotopes of a number of elements is unstable and disintegrates with the production of radiation and usually of an atom or atoms of other elements. Webb14 juli 2024 · Since the number of protons in the nucleus of an atom determines the element, the conversion of a neutron to a proton actually changes the radioactive …
WebbAs 1 g of the radioactive element radium decays over 1 year, it produces 1.16 × 10^18 alpha particles (helium nuclei). Each alpha particle becomes an atom of helium gas. … WebbSo while the average time to decay is a measurable number (for potassium it’s over a billion years), the exact time of the decay is entirely random. There are three types of …
WebbClick here👆to get an answer to your question ️ The radioactivity of an element becomes 1/64^th of its original value in 60 sec . The half value periods is. Solve Study Textbooks … WebbThe atomic mass of naturally occurring but radioactive potassium-40 is measured to be 39.964008 amu. Potassium-40 decays predominantly by β-emission to calcium-40, having a measured mass 39.962589. Through Einstein’s equation, energy is equal to mass ( m) times velocity of light ( c) squared, or E = mc2, the energy release ( Q) and the mass ...
Webb23 mars 2024 · Radioactive dating is a process by which the approximate age of an object is determined through the use of certain radioactive nuclides. For example, carbon-14 has a half-life of 5,730 years and is used to measure the age of organic material.
Webb25 aug. 2024 · Any nucleus that is unstable and decays spontaneously is said to be radioactive, emitting subatomic particles and electromagnetic radiation. The emissions … the donkey of guizhouWebb24 nov. 2024 · This reaction is an alpha decay. We can solve this problem one of two ways: Solution 1: When an atom gives off an alpha particle, its atomic number drops by 2 and its mass number drops by 4, leaving: Po206 84. We know the symbol is Po, for polonium, because this is the element with 84 protons on the periodic table. the donkey from winnie the pooh nameWebbFig.6.1 The rate of radioactive decay. After each subsequent half-life of 20 hours the number of radioactive nuclei and the original radioactivity of 800 units are divided into half. By integration of this relation and applying the boundary conditions that at in the beginning t = 0 and N = N0 we obtain: ln(N/N0) = t (6.4) the donkey poker table phone holderWebbDepleted uranium (DU; also referred to in the past as Q-metal, depletalloy or D-38) is uranium with a lower content of the fissile isotope 235 U than natural uranium. Natural uranium contains about 0.72% 235 U, while the DU used by the U.S. Department of Defense contains 0.3% 235 U or less. The less radioactive and non-fissile 238 U the donkey sanctuary exeterWebbThe radioactivity of an element becomes 1/64thof its original value in 60 sec. The half value periods is A 5 sec B 10 sec C 20 sec D 30 sec Hard Answer Correct option is B 10 … the donkey in spanishWebbRadioisotopes are radioactive isotopes of an element. They can also be defined as atoms that contain an unstable combination of neutrons and protons, or excess energy in their nucleus. How do radioisotopes occur? the donkey jesus rode into jerusalemWebbThe radioactivity of an element becomes \frac{1}{64} th of its original value in 60 \mathrm{~s}. Then the half-life period of element is (A) 5 \mathrm{~s} (B... the donkey sanctuary liscarroll