1. Atomic Orbitals – Class Warmup Determine whether each of the following statements is true or false. If it is false, explain what is wrong with the statement. An s orbital is always spherical in shape. Answer: True The 2s orbital is the same size as the 3s orbital. Answer: False. The 2s orbital is smaller than the 3s.

2. Atomic Orbitals The number of lobes on a p orbital increases as “n” increases. That is, a 3p orbital has more lobes than a 2 p orbital. Answer: False. The shape of the p orbital does not change from energy level to energy level. Only the size changes. Principle energy level 1 has one s orbital, level 2 has two s orbitals, level 3 has three s orbitals, and so on. Answer: False. In each energy level, there is only one s orbital

3. Atomic Orbitals The electron path is indicated by the surface of the orbital. Answer: False. An orbital is a region of space where it is likely to find and electron. Electrons do not follow a defined path and orbitals do not have surfaces. The shape of a given type of orbital changes as “n” increases. Answer: False. The shape does not change. The size DOES change.

4. Atomic Orbitals The number of sublevels in a given energy level is the same as the value of “n”. Answer: True The hydrogen atom has a 3s orbital. Answer: True. In the ground state, the orbital is empty.