Which statement describes a concept included in the wave-mechanical model of the atom? 1. Positrons are located in shells outsid
1 answer:
You might be interested in
Answer: Option (b) is the correct answer.
Explanation:
The elements which have excess or deficiency of electrons will react readily.
Atomic number of Mn is 25 and electronic configuration of is [Ar]
. This configuration is stable.
Atomic number of Cr is 24 and electronic configuration of is [Ar]
. This configuration is not stable.
Atomic number of Fe is 26 and electronic configuration of is [Ar]
. This configuration is stable.
Atomic number of Cu is 29 and electronic configuration of is [Ar]
. This configuration is not stable.
Atomic number of Al is 13 and electronic configuration of Al is . This configuration is not stable.
Atomic number of Ba is 56 and electronic configuration of is [Kr]
. This configuration is stable.
Atomic number of Mg is 12 and electronic configuration of is
. This configuration is stable.
Atomic number of Sn is 50 and electronic configuration of Sn is [Kr]. This configuration is stable.
Thus, we can conclude that out of the given options, only Fe and reactants would lead to a spontaneous reaction as they have incomplete sub-shells. Therefore, in order to gain stability they will readily react.
Answer:
Explanation:
Hello,
In this case, since iron (III) chloride (FeCl3) and barium chloride (BaCl2) are both chloride-containing compounds, we can compute the moles of chloride from each salt, considering the concentration and volume of the given solutions, and using the mole ratio that is 1:3 and 1:2 for the compound to chlorine:
So the total mole of chloride ions:
And the total volume by adding the volume of each solution in L:
Finally, the molarity turns out:
Best regards.