an electron correct answersA β− particle is also known as...
a photon
a positron
an electron
a helium nucleus
a neutron is transformed to a proton. correct answersDuring beta minus decay...
a neutron is transformed to a proton.
a proton is transformed to a neutron.
a proton is ejected from the nucleus.
a neutron is ejected from the nucleus.
31H correct answersWhen tritium, 31H, decays, it emits a beta particle and becomes 32He.
Which of the two nuclei has the larger mass defect?
neither
32He
31H
does not change correct answersWhen a β− particle is emitted from an unstable nucleus, the
atomic mass number of the nucleus...
does not change
decreases by 1
none of these
increases by 1
increases by 1 correct answersWhen a β− particle is emitted from an unstable nucleus, the atomic
number of the nucleus...
does not change
decreases by 1
increases by 1
none of these
an electron is emitted correct answersIn beta minus decay...
a neutron is emitted
an electron is emitted
a proton is emitted
a positron is emitted
the limited range of the strong nuclear force. correct answersThere is a limit to the size of a
stable nucleus because of...
the weakness of the gravitational force.
the limited range of the strong nuclear force.
none of these.
the weakness of the electrostatic force.