Question

What element has an electron configuration of 1s/2 2s/2 3s/2 3p/6 4s/1.

Answer 1

Potassium (K) has an electron configuration of 1s²2s²2p⁶3s²4s¹.

Step-by-step explanation:

The element with the electron configuration of 1s²2s²2p⁶3s²4s¹ is potassium (K).