Answer: penetration is the ability of an electron in a given orbital to approach the nucleus closely. Shielding refers to the fact that core electrons reduce the degree of nuclear attraction felt by the orbital electrons. Shielding is the opposite of penetration. The most penetrating orbital is the least screening orbital. The order of increasing shielding effect/decreasing penetration is s<p<d<f.
Explanation:
The order of penetrating power is 1s>2s>2p>3s>3p>4s>3d>4p>5s>4d>5p>6s>4f....
Since the 3p orbital is more penetrating than the 3d orbital, it will lie nearer to the nucleus and thus possess lower energy.
Answer:
dilution
Explanation:
a solution which contains small amount of solute dissolve in large amount of solvent is called dilutEd solution.. dilutEd solution is prepared when a small amount of solute is dissolve in large amount of solvent..
Each name is a given number of objects
Answer:
K = 4.07x10⁻³
Explanation:
Based on the reaction:
NH₄I(s) ⇄ NH₃(g) + HI(g)
You can define K of equilibrium as the ratio of concentrations of reactants and products, thus:
K = [NH₃] [HI] / [NH₄I]
But, as NH₄I is a solid, is not taken into account in the equilibrium, that means K expression is:
K = [NH₃] [HI]
As the concentrations in equilibrium of the gases is:
[NH₃] = 4.34x10⁻²M
[HI] = 9.39x10⁻²M
Equilibrium constant, K, is:
K = 4.34x10⁻²M * 9.39x10⁻²M
<h3>K = 4.07x10⁻³</h3>
Answer: Ag, Zn, Pd. (Ag is has the highest conductivity and Pd has the lowest conductivity).
Explanation:
The correct answer is not among the options given.
You must look up the electrical conductivity of these metals in a table of metal properties.
The values that you can find are:
- Ag: 62.1 × 10⁶ Siemmens / m
- Zn: 16.6 × 10⁶ Siemmens / m
- Pd: 9.5 × 10⁶ Siemmens / m
So in order of decreasing conductivity the list is Ag > Zn > Pd.