5
8
18
2
Correct answer is B
No explanation has been provided for this answer.
How many orbitals are in the d-sub shell? ...
Which of the following is an example of a chemical change? ...
Two solutions containing Pb2+ and AI3+ respectively can be distingusihed using...
When sodium nitrate dissolves in water, ∆H is positive. This means that? ...
Potassium trioxonitrate (V) can be obtained from its solution by---------- ...
What is the atomic number of Ruthenium? ...