Count unpaired electrons in orbital model
An orbital box diagram in a materials chemistry discussion shows \(3\) singly occupied orbitals. How many unpaired electrons are present? Use the HL diagram labels before giving the value or explanation. Enter the answer and choose the interpretation that matches the chemistry.
Worked practice: chemistry evidence and answer
Use the chemical evidence first, then enter the result and interpretation that match it.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.