Answer:
it should be B. earths core is composed of iron and nickel, if not let me know.
<span>Na (sodium) is highly electropositive. Its has 1 electron in its outermost orbit which is transferred to an electronegative atom to form an ionic bond.
It only needs to get rid of one valence electron to take part in a reaction. That's how it's highly reactive.</span>
hi there! i would love to help you but there are no choices or a photo attached!