There is insufficient information in the question to answer it. Please restate the question.
Polonium, which has an atomic number of 84, decays to astatine, which has an atomic number of 85, a negative beta particle is emitted.
An alpha particle is emitted when Pu-240 decays to U-236. It consists of two protons and two neutrons and is commonly emitted in alpha decay processes.
During the nuclear decay of Ne-19, a positron is emitted.
An Alpha particle, and associated gamma radiation from the excited nucleus.
It is the reverse: Np-235 decay to U-235 by electron capture.
The particle emitted during beta- decay is an electron, therefore it has a negative charge.
In alpha decay, the emitted particle has a charge of 2.
Polonium, which has an atomic number of 84, decays to astatine, which has an atomic number of 85, a negative beta particle is emitted.
It is negative beta particle emitted by a uranium nucleus and converting it to neptunium nucleus.
An alpha particle is emitted when Pu-240 decays to U-236. It consists of two protons and two neutrons and is commonly emitted in alpha decay processes.
An Alpha particle
When P-32 decays to S-32, a beta particle is emitted. This beta particle is an electron released during the conversion of a neutron into a proton within the nucleus of the atom.
During the nuclear decay of Ne-19, a positron is emitted.
The alpha particle is emitted in alpha decay, and that means you won't see it appear in beta decay. In beta decay, you'll get either an electron or a positron emitted from the nucleus. A link to the related question here can be found below. "What is beta decay?" is already posted and answered.
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A beta particle is a negative electron. A positive electron is a Positron.