Answer:
B or C
Explanation:
When an atom absorbs the right amount of energy, an electron moves from its original orbital to a higher-energy orbital that has a vacancy. Similarly, when an atom emits energy, the electron drops to a lower-energy orbital that has a vacancy.
This is all I could find
Neon, Helium, Krypton, Xenon, Argon
Answer:

Explanation:
MM: 2.016 17.03
N₂ + 3H₂ ⟶ 2NH3
m/g: 26.3
1. Theoretical yield
(a) Moles of H₂

(b) Moles of NH₃

(c) Theoretical yield of NH₃

(d) Percent yield

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