Electronic configuration of Rb: 2.8.8.8.8.3
Valence electron is 3....
The answer is B the flow of electrons through a substance
Answer:
-The mole is appropriate only for counting things that are very small.
-One mole is a very large number of something.
-A molecule of water is much smaller than a grain of sand.
Explanation:
They have less or more neutrons. Isotopes have same number of protons but different number of neutrons.
The balanced equation will read:
Pb(NO3)2 (aq) + LiSO4 (aq) ➡️ PbSO4 (s) + 2️⃣LiNO3 (aq)
have a great day!!