Which of the following is/are responsible for most of the atomic mass?
a) protons
b) neutrons
c) electrons
d) both a and b
Which of the following have positive charge?
a) protons
b) neutrons
c) electrons
d) none of these
Which of the following have negative charge?
NTS PST ---P-1----18L
a) protons
b) neutrons
c) electrons
d) none of these
Which particle of an atom is electrically neutral? NTS PST –P-2----(date not confirm)
a) protons
b) neutrons
c) electrons
d) none of these
Which of the following revolve around the nucleus in particular paths?
a) protons
b) neutrons
c) electrons
d) all of these
Electrons revolve around the nucleus in particular paths called……..
a) orbit
b) shells
c) both a and b
d) none of these
