Question

each arrow shows an electron moving from one energy level to another. which transitions will release energy? electron transitions in h - atom b and c only a a and d only c

Explanation:

When an electron moves from a higher - energy level to a lower - energy level, it releases energy. In the given diagram, arrow A shows an electron moving from a higher energy level to a lower energy level. Arrow C also shows an electron moving from a higher energy level (level 3) to a lower energy level (level 2). Arrow B shows an electron moving from a lower energy level to a higher energy level (absorbing energy), and arrow D shows an electron moving from a lower energy level to a higher energy level (absorbing energy).

Answer:

A and C