The correct answer is A. electrons can only jump from one energy level to the next and can't go anywhere in between. This makes it so that the amount of energy an electron can absorb and release are quantized which makes it so that they can only put out light that has certain energies.
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It would be the Aqueous solution
Answer:
The anode is oxidized and the cathode is reduced, in this way we are facing a redox reaction or oxide reduction.
Where the oxygenated compound oxidizes, and the protonized reduces.
Explanation:
When he says that oxygen is reduced the reaction would be:
OXYGEN + H (+1) -----> OH-
And the reaction where solid aluminum hydroxide is formed will be:
Al (+3) + 3 KOH (aqueous) -------> Al (OH) 3 (solid) + 3 K (+1),
Here we see how aluminum is immersed in an aqueous medium and becomes a solid compound in the form of hydroxide, where when attached to an oxygen, it is oxygenated and oxidized.
This reaction is considered irreversible
Answer:
Barium has a larger atomic radius because it has more energy levels and a larger shielding effect. Silicon has a smaller atomic radius because it has a stronger nuclear charge. Since chlorine's 17 protons are greater than magnesium's 12 protons, chlorine will have a greater effective nuclear charge to draw chlorine's valence electrons closer to the nucleus and, thus, chlorine is expected to have the smaller atomic radius, while magnesium with the lower effective nuclear charge is expected to.