Answer:
3
Explanation:
4 0 0 = 3 number of significant
12.772 product = multiply
<span>The ground state of the atom is its lower energy state. The correct electron configuration for a ground-state atom with 7 electrons is 1s^2 2s^2 2p^3. The powers that are exponents represent the number of electrons in the configuration and the 1s, 2s and the 2p represent the orbital.</span>
The answer is B.
<u>Each of the points or vertex represent a carbon atom. Answer choice B is the only choice that has 8. </u>