mass number

The nucleus of an atom of an element contains 11 protons and 12 neutrons. Determine the atomic number and mass number of the elemen..

(i) The decrease in the binding energy/nucleon at high mass numbers tells us that nucleons are more lightly bound when they are assembled into two middle mass nuclei than in a single high mass nucleus. Therefore, energy can be released in nuclear fission of ..

Emission of a and b -rays bring some changes in the nucleus of the atom and the new element formed as a result of these charges is called daughter element. There is conservation of both atomic number and mass number in the equation of a nuclear reaction. Thus, i) Sum o..

The atoms of different elements, which have the same mass number but different atomic numbers are called isobars. These have different number of protons but equal sum of number of protons and neutron..

Emission of a , b and g Rays - Emission of a and b -rays bring some changes in the nucleus of the atom and the new element formed as a result of these charges is called daughter element. There is conservation of both atomic number and mass number in the equation of a n..

When four different atoms are attached to the chiral carbon, priority depends on atomic number. The atom with the highest atomic number gets top priority. If the two atoms are isotopes of the same element, the atom of higher mass number has higher priorit..

Rule 1 - When four different atoms are attached to the chiral carbon, priority depends on atomic number. The atom with the highest atomic number gets top priority. If the two atoms are isotopes of the same element, the atom of higher mass number has higher pr..

The emission of a or b - particles from a radioactive element results in the function of new element called daughter element. If the daughter element still has unstable nucleus, it further disintegrates by emitting a or b - particle and produces a new daughter element. This process of successive di..

Atomic number Z = 12, Mass number A = 25 Number of protons = Z = 12 Number of neutrons = A number of protons = 25 - 12 = 13 2. Find (i) the total number of neutrons and (ii) total mass of neutrons in 7 mg of 1 4 ..

The emission of g - rays does not produce any change either in mass number or in the atomic number of the nucleus. Emission of g - rays is observed in virtually all nuclear reactions from the nuclei, which are left in excited state by an earlier emission of a or b - pa..