It may be unreliable because it might mess something up from the speed.
Answer:
Metalloids
Explanation:
.... .....................
Answer:
80 is the correct answer i think I'm not sure
Answer:
Diagram of the nuclear composition and electron configuration of an atom of barium-138 (atomic number: 56), the most common isotope of this element. The nucleus consists of 56 protons (red) and 82 neutrons (blue).
