Question

what element has the configuration 1s²2s²2p⁶3s²3p³

Explanation:

Step1: Calculate the total number of electrons

The sum of the exponents in the electron configuration gives the total number of electrons. So, \(2 + 2+6 + 2+3=15\).

Step2: Determine the element based on atomic number

Since the number of electrons in a neutral atom is equal to its atomic number, and the element with atomic number \(15\) is phosphorus (\(P\)).

Answer:

Phosphorus (\(P\))