A.1:10
B.1:20
C.2:10
D.none of the above
Related Mcqs:
- When combined in a nucleus the total mass of the protons and neutrons is less than the sum of their individual masses. This suggests that
- An atom can be considered as having a dense nucleus of neutrons and protons and a surrounding distribution of electrons. If there are x neutrons y protons and z electrons what sort of relationship exists between x y and z in a small neutral atom? Where ? means approximately equals.
- A radioactive element A on radioactive disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic weight 234.1 the element A is
- In slowing down neutrons in a reactor protons are most effective because
- The elements A and B which are isobaric have atomic number 18 and 20 respectively. If B contains 20 neutrons the number of neutrons in A is
- The atomic number of a certain element is 83. An atom of this element must contain
- The atomic number of an element is
- The atomic number of an element corresponds to
- If the atomic weight of an element isA the correct expression is
- In a most stable element the the number of protons and the number of neutron is
