A. 2Na (s) + CI2 (g) → 2NaCI (s)
78 and 78. An atom of the element has 78 electrons and 78 protons.
The atomic number is 78, so the atom has 78 protons (+).
If the atom is neutral, it must contain 78 electrons (-).
Answer:
true
Explanation:
POPs bio-magnify throughout the food chain and bio-accumulate in organisms.