When does en element become a different element?

a. when radiation is emitted
b. only when the number of protons in the nucleus changes
c. only when the number of electrons in the outer shell changes
d. when the number of neutrons in the the nucleus decreases

The answer is A"When radiation is emitted:

Hope this helped !! :)

that scientist would be robert hooke

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.