Answer: It is element nitrogen. It has an atomic number of 7 and the valence electron is 5. It needs 3 electrons to complete its octet state. That's why sometimes it has the oxidation number of -3 in ammonia.
Answer:
Sound waves and some earthquake waves are longitudinal waves.Ocean, light, and other earthquake waves are transverse waves
Explanation:
Answer:
distillation
Explanation:
distillation is better suited separation method
