Chemistry, 30.11.2020 17:10 giulianna41

5.Infer: Which group has high ionization energies but very weak electron affinities? Why do you think this is so?

Answers: 3

Show answers

Answers

Answer from: Daniah2206

The group having high ionization energies, but weak electron affinities is group 18 of noble gases.

Ionization energy can be defined as the amount of energy required for the removal of electrons. In noble gases, the elements have stable electronic configuration, they require a high amount of energy for removing an electron. Thus they have high ionization energy.

Electron affinity has been the energy required for the addition of an electron. The electron affinity for the addition of electrons has been zero as they are stable elements, and do not require the addition of an electron.

For more information about ionization energy, refer to the link:

link

Answer from: Bashirar19

The group that has high ionization energies but very weak electron affinities is the group 18, (VIIIa) which are the noble gases, the group of elements including; He, Ne, Ar, Kr, Xe, Rn, and Og in the column, at the far right corner of the periodic table

The electronic configuration of the noble gases show that they have the complete octet or 8 electrons (or duplet, 2 electrons, for helium) in their valence shell, therefore, they are relatively stable and seldom take part in chemical reaction which requires the transfer of electrons

Therefore, the noble gases have high ionization energies (require high amount of energies to remove an electron) and low electron affinity (they require an input of energy before an electron can attached to them)

Explanation:

Answer from: Quest

Answerthis solution will not form a precipitateexplanationsolubility equilbrium: pbf₂(s) ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is $k_{sp} = [\text{pb}^{2+}][\text{f}^- ]^2 = 4 \times 10^{-8}$ (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as $q = [\text{pb}^{2+}]_{\text{initial}} \cdot [\text{f}^- ]^2_{\text{initial}}$ then, we can interpret q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product: $\begin{aligned} q & = [\text{pb}^{2+}]_{\text{initial}} \cdot [\text{f}^- ]^2_{\text{initial}} \\ & = (1.9 \times 10^{-3} ) (3.8\times 10^{3})^2 \\ & = 2.7 \times 10^{-8} \end{aligned}$ since q = 2.7 × 10⁻⁸ < ksp = 4 × 10⁻⁸, a precipitate will not form.

Answer from: Quest

Qrepresents joules in the formula

Another question on Chemistry

Chemistry, 21.06.2019 22:00

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

Answers: 2

Answer

Chemistry, 22.06.2019 09:30

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Answers: 3

Answer

Chemistry, 22.06.2019 13:00

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Answers: 1

Answer

Chemistry, 22.06.2019 21:30

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars

Answers: 2

Answer

You know the right answer?

5.Infer: Which group has high ionization energies but very weak electron affinities? Why do you thi...

Questions