Question

Identify the element:
1. 1s22s22p63s1
2. [Kr] 5s24d105p

Answer 1

1. Sodium, Na

2. You left out the last number of the problem, so I will give you all six possibilities for the last 5p orbital:

5p1: Indium, In

5p2: Tin, Sn

5p3: Antimony, Sb

5p4: Tellurium, Te

5p5: Iodine, I

5p6: Xenon, Xe

Answer 2

1. sodium
2. Krypton