Question

you can resize the interactive by slowly dragging the dashed lines to the right of the interhaving problems staying logged in or are you experiencing issues? please visit our troubleshooting section for solutioidentify the complete electron configuration for an atom ofthe element boron (b):tap an option to select or deselect an answer.$1s^{2}1p^{1}LXB01s^{2}2s^{2}2p^{1}LXB11s^{2}2p^{3}$student name:guestactivity:apprenticeprogress report#1 #2 #3#4 #5 #6tap for question-specific helphelp me!view directionsto main menu

Explanation:

Step1: Find boron's atomic number

Boron (B) has an atomic number of 5, so it has 5 electrons.

Step2: Fill orbitals by Aufbau principle

Fill lower energy orbitals first: $1s$ holds 2 electrons, $2s$ holds 2 electrons, remaining 1 electron goes to $2p$.
<Expression>
$1s^2 2s^2 2p^1$ (total electrons: $2+2+1=5$)
</Expression>

Step3: Match to options

Compare the derived configuration to the given choices.

Answer:

1s² 2s² 2p¹ (the third option)