Beta minus decay emits a positron so a proton is changed to a neutron in this process. This means that caesium 137 decays to Xenon 137
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.
alpha decay - fully ionized helium nucleibeta decay - electrons or positrons, and electron neutrinosgamma decay - very high energy photons
If the graph, from left to right, is going upwards, with an increasing gradient (slope) then it is undergoing growth. If it is going downwards, with a decreasing gradient (slope) then it is undergoing decay.
No, it is 2 smaller as two protons go to form the alpha particle.
Lead-209 undergoes beta- decay to become Bismuth-209 82209Pb --> 83209Bi + -10e + v-e emitting an electron and an electron antineutrino.
alpha
alpha
Produce a large amount of heat and energy which is utilized for many purposes
That depends on the type of decay:Alpha decay, it emits an alpha particle (a helium nucleus)Beta decay, it emits an electron or positron and a neutrinoGamma decay, it emits a very high energy photonSynthetic atoms with large excesses of neutrons (some fission products) may release neutrons directly instead of undergoing Beta decay to convert the neutrons to protons.
It is a result of the alpha radioactive decay of actinium.
radioactive isotope
Rot and decomposition are words for decay. Another word for tooth decay is cavity. Cavities happen as a result of the production of acid by bacterial fermentation of food debris accumulated on the tooth surface.