FumikoKoback237
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29 Which statement describes the relative masses of two different particles?(1) A neutron has less mass than a positron.(2) A beta particle has less than a neutron.
(3) An alpha particle has less mass than a positron.
(4) An alpha particle has less mass than a beta particle.

Sagot :

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1) is false because a neutron has a relative mass of 1 and a positron has a relative mass of 0 (It's the antimatter version of an electron - same mass, opposite charge).
2) is correct, because a beta particle has a relative mass of 0 (It's just an electron), and a neutron has a relative mass of 1.
3) is incorrect because an alpha particle has a relative mass of 4 (It's a Helium Nucleus) and a positron has a relative mass of 1.
4) is incorrect because an alpha particle has a relative mass of 4 and a beta particle has a relative mass of 0.
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