buttan1hea8rSommaa buttan1hea8rSommaa

06-01-2017
Chemistry

contestada

Which particle has a mass that is approximately equal to the mass of a proton?

(1) an alpha particle
(2) a beta particle
(3) a neutron
(4) a positron

Respuesta :

kaivalyashenoy kaivalyashenoy

11-01-2017

a neutron. option (3).

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