which diagram shows a pair of electrons that have opposite spins?\n○ ↿⇂\n○ ↿ ⇂\n○ ↿ ↿\n○ ⇂⇂
which diagram shows a pair of electrons that have opposite spins?\n○ ↿⇂\n○ ↿ ⇂\n○ ↿ ↿\n○ ⇂⇂
Answer
Brief Explanations:
In quantum - mechanics, electrons in an orbital with opposite spins are represented by one arrow pointing up and one arrow pointing down in the same box. This is due to the Pauli Exclusion Principle which states that no two electrons in an atom can have the same set of quantum numbers. In an orbital, the two possible spin quantum numbers are +1/2 (represented by an up - arrow) and - 1/2 (represented by a down - arrow).
Answer:
The first option (where there is one up - arrow and one down - arrow in the same box) shows a pair of electrons with opposite spins.