FreeNotes
(a) 2s, 2p Answer: The 2s orbital is lower in energy than the 2p orbital. Generally, s orbitals have lower energy than p orbitals in the same shell. (b) 3p, 2p Answer: The 2p orbital is lower in energy than the 3p orbital. Higher principal quantum numbers correspond to higher energy levels. (c) 3s, 4s … Read more
z = 1s, 2s, 2p, 3s’ Mistake: The configuration ends with 3s’, which is incorrect because the electron configuration of the 3rd shell should fill the 3s sub-shell first before moving to higher sub-shells such as 3p. Correct configuration: 1s² 2s² 2p⁶ 3s² x = 1s, 2s, 2p’, 3p’ Mistake: The configuration mentions 2p’ and … Read more
The sub-shells of the M shell in order of increasing energy are: 3s < 3p < 3d Related Questions: How many sub-shells are there in the N shell? Why is an atom electrically neutral? Give notation for sub-shells of the M shell. The electronic configurations listed below are incorrect. Explain the mistakes in each and … Read more
The M shell corresponds to n = 3. Therefore, the sub-shells in the M shell are: 3s 3p 3d Related Questions: Why is an atom electrically neutral? How many sub-shells are there in the N shell? Distinguish between shell and sub-shell. What is the role of analytical chemistry in forensic science? Give two examples of … Read more
In the N shell, where n = 4, there are four sub-shells: 4s, 4p, 4d, and 4f. The number of sub-shells in any shell corresponds to the principal quantum number n. Related Questions: List the sub-shells of the M shell in order of increasing energy. Why is an atom electrically neutral? Give notation for sub-shells … Read more
An atom is electrically neutral because the number of positively charged protons in the nucleus is equal to the number of negatively charged electrons surrounding the nucleus. The positive charge of protons is balanced by the negative charge of electrons, resulting in no net charge. Related Questions: How many sub-shells are there in the N … Read more