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Because the less protons are in an atom the quicker it decays.
Carbon-14 does not decay by alpha decay, it decays by beta- decay to nitrogen-14, emitting a W- boson that subsequently decays into an electron and an electron antineutrino... 614C -> 714N + (W- -> e- + v-e)
Radium 226 decays by alpha emission to Radon 222. A helium nucleus is emitted by alpha emission which makes the mass reduce by 4 and its atomic number by 2.
It's beta decay. Actually, it's beta minus decay. A neutron in the nucleus of thorium-234 undergoes beta minus decay and changes into a proton with the subsequent release of an electron, an antineutrino and some energy. The transformation of a neutron in the thorium nucleus into that proton creates another element. You'll recall that the identity of an element is determined solely by the number of protons in its nucleus. And our thorium atom has now become a protractinium-234 atom. Links are provided below for more information.
Th-230 -> He-4 + Ra-226 Thorium which alpha decays produces an alpha particle (Helium 4) and a Radium-226 atom.
Because the less protons are in an atom the quicker it decays.
Carbon-14 does not decay by alpha decay, it decays by beta- decay to nitrogen-14, emitting a W- boson that subsequently decays into an electron and an electron antineutrino... 614C -> 714N + (W- -> e- + v-e)
Radium 226 decays by alpha emission to Radon 222. A helium nucleus is emitted by alpha emission which makes the mass reduce by 4 and its atomic number by 2.
Gold never decays by alpha emission, it either decays by -beta, +beta, K capture, or gamma emission depending on isotope.Natural gold is isotopically pure gold-197, which is stable.
It's beta decay. Actually, it's beta minus decay. A neutron in the nucleus of thorium-234 undergoes beta minus decay and changes into a proton with the subsequent release of an electron, an antineutrino and some energy. The transformation of a neutron in the thorium nucleus into that proton creates another element. You'll recall that the identity of an element is determined solely by the number of protons in its nucleus. And our thorium atom has now become a protractinium-234 atom. Links are provided below for more information.
Tritium decay to helium-3.
Lead-210 decays by alpha or beta decay. The equation for the alpha decay of 210Pb is: 82210Pb --> 80206Hg + 24He representing the alpha particle as a helium nucleus. The equation for the beta decay of 210Pb is: 82210Pb --> 83210Bi + -10e where the -10e is an electron.
The atomic number of an atom undergoing alpha decay decreases by 2. Not asked, but answered for completeness, the atomic mass number decreases by 4.
Th-230 -> He-4 + Ra-226 Thorium which alpha decays produces an alpha particle (Helium 4) and a Radium-226 atom.
That depends on the type of decay, alpha and beta decay change the atom into a different element but gamma decay does not.
A nucleus that starts to decay is called a radioactive nucleus or atom. It decays with a known and unique half life by several processes including but not limited to beta decay, alpha decay, electron capture decay, and positron emission.
This is the alpha radioactive decay.