90 and 234 respectively
91 and 238 respectively
92 and 236 respectively
93 and 238 respectively
Correct answer is A
23892 X 234 90Y + 4 2 He Atomic number is 90 while mass number is 234
The oxide from electric power station is ...
Which of the following statements is NOT true of electrovalent compounds? ...
A nuclide emits a beta-particle (e) in the process, that atomic number ...
What is the chemical structure of soap and detergent molecules? ...
Which of the following represents saponification? ...
Alkanoates are formed by the reaction of alkanoic acid with? ...