Write the complete symbol for the atom with the given atomic number (Z) and atomic mass (A)
(i) Z = 17, A = 35
(ii) Z = 92, A = 233
(iii) Z = 4, A = 9
Concept Used:
The complete atomic symbol is written as:
AZX
where,
A = mass number
Z = atomic number
X = symbol of the element
(i) Z = 17, A = 35
Atomic number 17 corresponds to Chlorine (Cl).
Complete symbol:
3517Cl
(ii) Z = 92, A = 233
Atomic number 92 corresponds to Uranium (U).
Complete symbol:
23392U
(iii) Z = 4, A = 9
Atomic number 4 corresponds to Beryllium (Be).
Complete symbol:
94Be
Final Answer:
(i) 3517Cl
(ii) 23392U
(iii) 94Be
Considering Bohr’s atomic model for hydrogen atom :
(A) the energy of H atom in ground state is same as energy of He+ ion in its first excited state.
(B) the energy of H atom in ground state is same as that for Li++ ion in its second excited state.
(C) the energy of H atom in its ground state is same as that of He+ ion for its ground state.
(D) the energy of He+ ion in its first excited state is same as that for Li++ ion in its ground state.