Answer:
metal ball that moves at high speed
Explanation:
Answer:
B
Explanation:
Heating a piece of iron until it glows.
The answer is 7. Valence electrons are the electrons in the very last shell, so we need to look at the outer “circle” and count the electrons, or the little black dots. There are 7 in the last shell.
86 elections so 43 orbitals
