.Empirical formula for the nuclear radius R is
1.ro A1/3
2.ro1/3 A
3.(ro A)1/3
4.ro A
Posted Date:-2021-10-18 10:54:31
A nucleus is symbolically represented as ZXA where A represents the number of
1.neutrons
2.protons
3.nucleons
4.electrons
Posted Date:-2021-10-18 10:54:31
Charge of a proton is equal to
1.1.6 ? 1019 C
2.1.66 ? 10-27 C
3.1.6 ? 10-19 C
4.1.66 ? 1027 C
Posted Date:-2021-10-18 10:54:31
Charge of the nucleus is due to
1.protons in it
2.neutrons in it
3.both protons and neutrons in it
4.electrons
Posted Date:-2021-10-18 10:54:31
Energy equivalent of 1 amu is equal to
1.1.66 ? 10-27 ? (3?108)2J
2.1.66 ? 10-27 ? 3?108 J
3.1.66 ? 10-27 ? 3?109 J
4.1.66 ? 10-8 J
Posted Date:-2021-10-18 10:54:31
Energy of an electron in atom and nuclear energy are respectively in the order of
1.MeV and eV
2.MeV and MeV
3.eV and eV
4.eV and MeV
Posted Date:-2021-10-18 10:54:31
Isotopes of a given element have28.
1.same mass number
2.same neutron number
3.same chemical properties
4.different chemical properties
Posted Date:-2021-10-18 10:54:31
Mass difference is equal to
1.Real mass � (Zmp + Nmn)
2.(Zmn + Nmp) � real mass
3.Real mass � (Zmn + Nmp)
4.(Zmp + Nmn) � real mass
Posted Date:-2021-10-18 10:54:31
Mass number refers to
1.the number of neutrons
2.the number of protons
3.the sum of the number of neutrons and protons in the nucleus
4.the number of positrons
Posted Date:-2021-10-18 10:54:31
Mass of proton is
1.1.007277 amu
2.1.6600 amu
3.1.008665 amu
4.1.00325 amu
Posted Date:-2021-10-18 10:54:31
Mass-energy equation is
1.E = m/c2
2.E = mc
3.E = m/c
4.E = mc2
Posted Date:-2021-10-18 10:54:31
Nuclear density is equal to
1.1.816 ? 1010 kg m-3
2.1.816 ? 1017 kg m-3
3.1.314 ? 104 kg m-3
4.1.314 ? 1010 kg m-3
Posted Date:-2021-10-18 10:54:31
Nuclear term A represents the number of
1.neutrons
2.protons
3.electrons
4.nucleons
Posted Date:-2021-10-18 10:54:31
Nuclei of isotopes have same
1.atomic number
2.neutron number
3.mass number
4.mass deflect
Posted Date:-2021-10-18 10:54:31
Nucleons are held together by
1.electrostatic force
2.nuclear force
3.magnetic force
4.gravitational force
Posted Date:-2021-10-18 10:54:31
One Fermi is equivalent to
1.10-10 m
2.10-12 m
3.10-15 m
4.10-16 m
Posted Date:-2021-10-18 10:54:31
Pick out isotopes from the following
1.1H1 6C12
2.7N15 8O16
3.1H3 2He3
4.92U235 92U238
Posted Date:-2021-10-18 10:54:31
Real nucleus mass is
1.greater than (Zmp + Nmn)
2.less than (Zmn + Nmp)
3.less than (Zmp + Nmn)
4.greater than (Zmn + Nmp)
Posted Date:-2021-10-18 10:54:31
The atomic mass unit (amu) is defined as 1/12 of the mass of
1.6C14 atom
2.6C11 atom
3.6C12 atom
4.6C13 atom
Posted Date:-2021-10-18 10:54:31
The atomic number Z of a element is equal to13.
1.the number of neutrons
2.the number of protons
3.the number of positrons
4.the sum of number of the neutrons and protons
Posted Date:-2021-10-18 10:54:31
The atomic number Z the neutron number N and the mass number A are related by
1.A � Z = N
2.A + Z = N
3.A + N = Z
4.2A= Z � N
Posted Date:-2021-10-18 10:54:31
The mass of a neutron is
1.1.00728 amu
2.1.00866 amu
3.1.66 amu
4.1.602 amu
Posted Date:-2021-10-18 10:54:31
The mass of proton is about
1.1836 times that of electrons
2.1836 times that of neutrons
3.1/1836 times that of electrons
4.1/1836 times that of neutrons
Posted Date:-2021-10-18 10:54:31
The neutron which is slightly
1.heavier than proton possesses charge
2.lighter than proton possesses charge
3.lighter than proton possesses no charge
4.heavier than proton possesses no charge
Posted Date:-2021-10-18 10:54:31
The radius of a nucleus is about
1.10-10m
2.10-11m
3.10-7m
4.10-14m
Posted Date:-2021-10-18 10:54:31
The radius of an atom is about
1.10-7m
2.10-10m
3.10-11m
4.10-14m
Posted Date:-2021-10-18 10:54:31
The term nucleon is used to refer to
1.electron
2.photon
3.positron
4.either neutron or proton
Posted Date:-2021-10-18 10:54:31
Which of the following are referred to as nucleons
1.protons and electrons
2.neutrons and electrons
3.neutrons and protons
4.neutrons and positrons
Posted Date:-2021-10-18 10:54:31
Which of the following is different for the isotopes of the same element
1.atomic number
2.atomic weight
3.number of electrons
4.number of protons
Posted Date:-2021-10-18 10:54:31