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Feb 15, 2016 · 3.Radioactive decay is the breakdown of an atomic nucleus resulting in the release of energy and matter from the nucleus. Answer link. nuclear fusion is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new nucleus. 2.nuclear fission is a process in which the nucleus ...
May 29, 2015 · Carbon-14 is radioactive because it has too many neutrons for the number of protons. > The principal factor that determines whether a nucleus is stable is the neutron to proton (n:p) ratio. The diagram below plots the number of neutrons versus the number of protons in the first 15 elements. The black squares represent stable isotopes. They are called the band of stability for these elements . For most of these elements, n:p =1. Carbon-14 has 8 neutrons and 6 protons. It is unstable because ...
Apr 5, 2016 · The faster the decay, the shorter the half life. Half life (mathematically T_(1/2)) is how long it takes for half of the atoms in a substance to radioactively decay. If you want to know the maths behind their relationship, N = N_0e^(-lambdat) applies to radioactive substances, where N is the number of radioactive atoms at time t N_0 is the number of radioactive atoms at the beginning of the process, when t = 0 e is Euler's constant, approx 2.71828 t, as mentioned, is time, and lamda is the ...
Oct 17, 2015 · During radioactive decay, particles and energy called radiation are are released by atoms of the radioactive element. Radioactive decay is the term used to describe the process by which an unstable atom loses energy to its surrounding environment. With radioactive decay, the nucleus of the atom changes from a parent nuclide to a daughter nuclide.
Explanation: The best known everyday application of alpha decay is the smoke detector. A smoke detector consists of two metal plates with a small space between them. These plates have wires connected to a battery and current monitor. One of the plates contains a small amount of the radioactive element americium, which gives off alpha particles.
Transmutation involves a change in the nucleus, or core, of an atom and is, therefore, a nuclear reaction. Transformations may result from nuclear decay of radioactive isotopes, or they can result from neutron capture. Neither necessarily involves a change in the element of the atom. When the number of protons in an atom is changed, the atom is ...
May 31, 2017 · If a radioactive Isotope has a half life of 30 days then how long will it take 1000 grams to... If the half life of an unstable element is 5000 years, what percentage of the parent material... How much material will be left if a radioactive isotope has a half life of 1.3 billion years in...
Jan 7, 2016 · Explanation: The carbon-14 atoms undergo beta-minus decay (electron emission) and produce a beta particle and a nitrogen-14 atom. A neutron in the atom undergoes decay and will produce a proton, electron (the beta particle ) and an electron antineutrino. Here's a video to give more explanation... Hope this helps! C-14 -> N-14 + beta^- The ...
Nov 29, 2017 · When an unstable isotope undergoes radioactive decay radiation is emitted in the form of either alpha, beta, or gamma particles. When an unstable isotope undergoes radioactive decay radiation is emitted in the form of either alpha, beta, or gamma particles. Alpha or beta emissions may result in a change in the number of protons within the nucleus. A change in the number of protons changes the radioactive isotope into a more stable isotope. The time it takes for half of the atoms in a ...
Mar 8, 2018 · Unstable nuclei If an atom has an unstable nucleus, like when it has too many neutrons compared to protons, or vice-versa, radioactive decay happens. The atom ejects out beta or alpha particles, depending on the type of radiation, and begins to lose mass (in the case of alpha particles), in order to form a stable isotope. Alpha decay is caused by heavy elements, usually the synthetic elements, like roentgenium (element 111), flerovium (element 114), and such. They eject out an alpha particle ...
