When an electron absorbs a photon, a "quantum leap" of its energy transition takes place.
Answer:
The answer to your question is below
Explanation:
Valence electrons are the electrons located in the outermost shell of an atom.
In the periodic table atoms are ordered in groups which considered the valence electrons.
For example:
Group IA: all the atoms in this group have 1 valence electron.
Group IIA: the elements in this group have 2 valence electrons.
Group IIIA: the elements in this group have 3 valence electrons.
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Group VIIA: the elements in this group have 7 valence electrons.
Group VIIIA: the elements in this group have 8 valence electrons.
The oxidation of sulfur in H2SO4 is +6.
Coefficients with the lowest ratio indicate the relative amounts of substances in a reaction. For example, chemical reaction: 2H₂ + O₂ → 2H₂O