A three dimensional circular shape would be a sphere :)
1- Molar solutions: based on number of moles of chemical in 1 litre of solution
2- Weight % solution: the weight of chemical divided by the total weight of the solution (chemical + water) and multiplied by 100.
The answer to that question is B
You're wrong because the third energy level can contain 18 <span>electrons. And the 4th have up to 32 elections.
The pattern go by 2-8-18-32</span>
