Question

the aufbau principle describes the order of subshells in an atom in terms of energy. higher numbered shells have higher energy. it is complicated by occasional overlapping. the specific order of subshells using the aufbau principle can be found using the diagonal arrow diagram found in chapter 8, and this is the same order found on the periodic table. what is the order of subshells in period 2? 2s 1 what is the order of subshells in period 3? 3s 2 a. 1s b. 2s c. 3s d. 4s e. 5s f. 6s g. 7s h. 1p i. 2p j. 3p k. 4p l. 5p m. 6p n. 7p o. 1d p. 2d q. 3d r. 4d s. 5d t. 6d u. 7d v. 1f w. 2f x. 3f y. 4f z. 5f aa. 6f bb. 7f

Explanation:

Step1: Recall Aufbau principle for period 2

According to Aufbau principle, for period 2 after 2s, the next - filled sub - shell is 2p.

Step2: Recall Aufbau principle for period 3

For period 3, after 3s, the next - filled sub - shell is 3p.

Answer:

1. I. 2p
2. J. 3p