Question

Fill in the information missing from this table. nuclide protons neutrons Z A 31 40 0 62 149 Yb

Answer 1

Since, we know that, The number of Protons in the atom is equal to the the nucleus of atomic number (2). 1.2. No. of Proton – Atomic number (2) • The mass number of the atom (A) is equal to the sum of the number of Protons and neutrons in the nucke us. 1.e. Mass number (A) = No. of Proton & No. of neutrong. 6 Given, Protono = 31 neutrons = 40 solution es a since we know that Z = = No. of Proton Z = 317 A = No. of Protons & No. of Neutrons A = 31+ 40 [A = 71

The element is callium. corresponds to 7=31 and A=71 Nuclide symbol - Gra Given, z=62 A = 149 solution No. of Protons = ? No. of Protona = 62 & A = No. of Protons + No. of Neutrons 149 = 62 & No. of Neutrong No. of Neutrons = 149-62 The = 07 element correspond to 2= 62, and A= 149 is Samarium. Nuclide symbol = 149 kr

③ Given 17 sen 70 Solution from above nuclide Symbol A = 173 Z = 70 No. of Protone=Z= 70 No. of Neutrons - A-Z - 173-70 - 103 Nuclide Profons Neutron, a Ga 31 40 T 31 149 Som 87 T73UL 70 103