Which particles are most likely to be found in an atomic nucleus ?
neutrons only
protons only
both protons and neutrons
both neutrons and electrons 1.Which particles are most likely to be found in an atomic nucleus ?
neutrons only
protons only
both protons and neutrons
both neutrons and electrons
2.Which statement most accurately describes the interaction which binds a nucleus together ?
long-range and weak
long-range and strong
short-range and weak
short-range and strong
3.One universal mass unit is defined as
the mass of an electron
the mass of a proton
the mass of a carbon-12 atom
1/12 the mass of carbon-12 atom
4.If the mass of one proton was totally converted into energy, the yield would be
2.79 x 10-38 J
5.01 x 10-19 J
1.50 x 10-10 J
9.00 x 1016 J
5.A baryon may have a charge of
-1/3 e
0 e
+2/3 e
+4/3 e
6.An antibaryon is composed of
3 quarks
1 quark and 2 antiquarks
3 antiquarks
2 quarks and 1 antiquark
7.A particle has a quark composition of dds. What is the charge on and classification of the particle ?
-1 e, baryon
+1 e, baryon
-1 e, meson
+1 e, meson
8.The electron is classified as a
baryon
lepton
meson
quark
9.Protons and neutrons are examples of
positrons
baryons
mesons
quarks
10.If a deuterium nucleus has a mass of 1.53 x 10-3 universal mass units less than its components,
this mass represents an energy of
1.38 MeV
1.42 MeV
1.53 MeV
3.16 MeV