Explanation:

The team number is the exact same as the number of the valence electrons each aspect within that team has. Therefore, two facets in the same team will have the same variety of valence electrons. Because all bonding and/or ionizations involve the valence shell of electrons, atoms v the same number of valence electrons behave similarly. Both tellurium and also sulfur room in group VI, and also have 6 valence electrons.

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Explanation:

The period number/row number is the energy level for each element. Therefore, two atoms discovered in the same row ~ above the periodic table have actually the same energy level. Potassium and also selenium are both in heat 4 that the periodic table. Their highest energy level for electrons is 4.


Explanation:

Ionization power is the power required to eliminate an electron. Noble gases space special since the have actually a full valence covering of electrons, which makes them the most stable elements, and to eliminate an electron requires a lot of energy. The trend for ionization energy is as follows: ionization energy increases native left to appropriate within a row and from bottom to peak within a team on the regular table. Every one of the answer options are in the very same row the the routine table, yet fluorine is the furthest come the right. Hence fluorine has actually the best ionization energy.


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Example question #14 : The periodic Table


How plenty of valence electrons does the aspect oxygen have?


Possible Answers:

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Correct answer:


Explanation:

For neutral atoms, the variety of valence electron is equal to the atom"s main team number. Follow to the regular table, oxygen is in group 6; therefore, it has actually 6 valence electron in its outer shell.


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Example inquiry #15 : The regular Table


Which that the following is the most electronegative element?


Possible Answers:

Oxygen


None of the answer options are correct


Nitrogen


Fluorine


Chlorine


Correct answer:

Fluorine


Explanation:

Generally speaking, as you go throughout a period and up a team on the periodic table, electronegativity increases. Fluorine is the most electronegative element, with a Pauling range electronegativity ranking of approximately 4.0.


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Example inquiry #11 : The periodic Table


Which that these facets is least likely to host on to its valence electrons as soon as in the existence of a extremely electronegative atom?


Possible Answers:

Rubidium


Sodium


Cesium


Cobalt


Iron


Correct answer:

Cesium


Explanation:

Atomic radii rises from right to left of the periodic table and the decreases bottom to top. Therefore francium, in the bottom left that the periodic table, has actually the largest atomic radius; helium, in the peak right that the chart, has actually the smallest atomic radius. Based on these trends, cesium would certainly be least likely to host on come its valence electrons since it has a bigger atomic radius compared to cobalt or iron. To compare this to helium which has actually a tiny atomic radius and a complete valence covering of electrons, which makes it very stable.


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Example concern #11 : The routine Table


Which that the complying with groups of elements would call for the best influx of energy to dislodge an electron from its valence shell?


Possible Answers:

Alkaline earth metals


Halogens


Nonmetals


Transition metals


Alkali metals


Correct answer:

Halogens


Explanation:

Halogens would call for the greatest an initial ionization energy to dislodge one of their valence covering electrons since they have both the best electron affinity and also the smallest atomic radii. Since their electrons are both closer to your nuclei and halogens are much more "electron greedy" (electronegative), castle require an ext energy to eliminate an electron. However, due to the fact that the noble gasses have complete valence shells, they have actually the greatest an initial ionization energies.

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Example question #11 : The routine Table


You are tasked with packing a very little jar with as countless individual atom of the same facet as possible. Which aspect would you pick to for sure the largest quantity that atoms would certainly fit in to the jar?


Possible Answers:

Francium


Radon


Hydrogen


Boron


Helium


Correct answer:

Helium


Explanation:

Atomic radii decrease native left come right throughout the regular table and increase from height to bottom the the regular table. Based upon these trends, helium has actually the smallest atomic radii and an ext atoms would fit within our imaginary container. 


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Example question #19 : The periodic Table


Which of these facets is most likely to form a polar bond?


Possible Answers:

Bromine


Fluorine


Nitrogen


Oxygen


Chlorine


Correct answer:

Fluorine


Explanation:

Electronegativity is the tendency of one atom to tempt electrons to it. Electronegative atoms space electron "greedy". When they form covalent bonds, extremely electronegative atoms often type polar covalent bonds in i m sorry the electrons invest a higher amount of time close to the electronegative atom leading to a dipole moment. Water is the quintessential instance of a polar molecule. 

Electronegativity increases from left to right across the periodic table and increases from bottom to top as well. Fluorine is the most electronegative atom and it would be most likely to an outcome in a polar molecule. Save in mind the the formation of a polar bond depends on the differing electronegativities of the atom in question. For example, 2 oxygen atoms perform not make a polar bond even though both atoms are very electronegative.


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Example concern #11 : The routine Table


Which of the following lists atom radius increasing from smallest to biggest?


Possible Answers:



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