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 5? 5s 1 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:

According to the Aufbau principle, after the 5s sub - shell, electrons fill the 4d and then the 5p sub - shells in period 5.

Answer:

1. R. 4d
2. L. 5p