Answer:
D. Ar.
Explanation:
The<em> </em><em>electron configuration</em><em> of the atom reflects how the electrons are distributed among the various atomic orbitals</em>. Just as for neutral atoms, we use the Pauli exclusion principle and Hund’s rule in writing the ground-state electron configurations of cations and anions.
<u>Ions formed from atoms of most representative elements have the noble-gas outer electron configuration of ns²np⁶.</u> In the formation of a cation from the atom of a representative element, one or more electrons are removed from the highest occupied n shell. The electron configuration of calcium and its ion is as follows:
Ca: [Ar]4s² Ca²⁺ : [Ar]
I don’t know what your talking about
Answerr
Explaination
The Ksp of AgOH will be 1.98×10⁻⁸
According to the question,
The chemical reaction is:
AgOH (aq) + HCl (aq) ---> AgCl (s) + H₂O (aq)
Now, acc. to the formula:
C₁V₁ = C₂V₂
(AgOH) (HCl)
By substituting the values, we get:
C₁ x 250 ml = 0.0136 x 2.60 ml
C₁ = 0.000141
Now:
AgOH → Ag⁺(s) + OH⁻(s)
Hence,
Ksp will be:
= s²
= (0.000141)²
= 1.98x10⁻⁸
<h3><u>The value of Ksp(Solubility product constant)</u></h3>
When a chemical substance in the solid form is in chemical equilibrium with a solution of that molecule, a solubility equilibrium is a sort of dynamic equilibrium that develops. The solid may dissolve chemically reacting with another component of the solution, such as acid or alkali, or dissolving unaltered.
To know more about solubility constant, refer to:
brainly.com/question/1419865
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Answer:
C. Their properties change completely.
Explanation:
The electron configurations of the elements show a periodic variation with increasing atomic number. Consequently, there are also periodic variations in physical and chemical behavior.
When atoms interact to form a chemical bond, they combine in order to <u>achieve a more stable electron configuration.</u> As a consequence, the compounds formed exhibit completely different properties.
For example, when solid magnesium burns in air, it forms both magnesium oxide and magnesium nitride, which are gases.