Question

Which statement(s) about neutrons is/are TRUE?
SELECT ALL THAT APPLY
The major clue to their existence was extra mass in
a atoms that protons and electrons could not
account for.
b They were observed and measured directly, like
protons and electrons were.
C They have the same mass as protons.
d They have a negative charge.

Answer 1

Answer:

C

Explanation:

Because D ask "They have a negative charge" yes and no, but neutrons do, Why? Well because  the neutron has a negative charge both in its inner core and its outer edge, with a positive charge sandwiched in between to make the particle electrically neutral. Whilst B is wrong because like protons and electrons they were both measured and observed differently, just as the neutron. So that makes C the only correct answer.