Explanation:

The group number is the same as the variety of the valence electrons each aspect within that group has. Therefore, two elements in the same group will have actually the same variety of valence electrons. Because all bonding and/or ionizations indicate the valence covering of electrons, atoms with the same number of valence electrons behave similarly. Both tellurium and sulfur are in team VI, and have 6 valence electrons.

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Explanation:

The duration number/row number is the power level because that each element. Therefore, two atoms found in the very same row ~ above the periodic table have the same energy level. Potassium and also selenium room both in row 4 of the regular table. Your highest energy level for electrons is 4.


Explanation:

Ionization energy is the power required to remove an electron. Noble gases are special due to the fact that the have actually a complete valence covering of electrons, which makes them the most stable elements, and to remove an electron needs a most energy. The trend for ionization energy is together follows: ionization energy increases native left to appropriate within a row and from bottom to top within a group on the periodic table. Every one of the answer options are in the same row of the regular table, yet fluorine is the furthest to the right. Hence fluorine has the best ionization energy.


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Example question #14 : The regular Table


How numerous valence electrons does the element 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 group number. Follow to the routine table, oxygen is in team 6; therefore, it has actually 6 valence electron in its external shell.


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Example question #15 : The regular Table


Which that the complying with is the most electronegative element?


Possible Answers:

Fluorine


Oxygen


Chlorine


None of the answer choices are correct


Nitrogen


Correct answer:

Fluorine


Explanation:

Generally speaking, together you go throughout a duration and increase a group on the routine table, electronegativity increases. Fluorine is the most electronegative element, through a Pauling range electronegativity ranking of around 4.0.


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Example question #16 : The regular Table


Which of these aspects is least likely to hold on to its valence electrons when in the existence of a highly electronegative atom?


Possible Answers:

Iron


Sodium


Cobalt


Cesium


Rubidium


Correct answer:

Cesium


Explanation:

Atomic radii rises from right to left of the periodic table and the decreases bottom come top. So francium, in the bottom left of the periodic table, has the largest atomic radius; helium, in the height right the the chart, has actually the the smallest atomic radius. Based upon these trends, cesium would certainly be the very least likely to hold on to its valence electrons because it has actually a bigger atomic radius compared to cobalt or iron. Compare this to helium which has actually a little atomic radius and a complete valence covering of electrons, which renders it very stable.


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Example inquiry #17 : The regular Table


Which the the adhering to groups of elements would need the biggest influx of energy to dislodge an electron indigenous its valence shell?


Possible Answers:

Transition metals


Alkaline planet metals


Alkali metals


Nonmetals


Halogens


Correct answer:

Halogens


Explanation:

Halogens would call for the greatest an initial ionization energy to dislodge among their valence shell electrons since they have both the biggest electron affinity and also the smallest atomic radii. Since their electrons space both closer to their nuclei and halogens are much more "electron greedy" (electronegative), they require an ext energy to remove an electron. However, because the noble gasses have complete valence shells, they have the greatest an initial ionization energies.

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Example question #18 : The routine Table


You are tasked with packing a very tiny jar v as countless individual atoms of the same aspect as possible. Which element would you pick to for sure the biggest quantity the atoms would fit in to the jar?


Possible Answers:

Francium


Boron


Radon


Helium


Hydrogen


Correct answer:

Helium


Explanation:

Atomic radii decrease indigenous left to right across the regular table and increase from top to bottom that the periodic table. Based on these trends, helium has the smallest atomic radii and much more atoms would certainly fit inside our imaginary container. 


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Example question #19 : The regular Table


Which the these elements is most most likely to kind a polar bond?


Possible Answers:

Oxygen


Chlorine


Bromine


Fluorine


Nitrogen


Correct answer:

Fluorine


Explanation:

Electronegativity is the propensity of an atom to attract electrons come it. Electronegative atoms room electron "greedy". As soon as they form covalent bonds, very electronegative atom often form polar covalent bond in i beg your pardon the electrons spend a higher amount the time close to the electronegative atom resulting in a dipole moment. Water is the quintessential example of a polar molecule. 

Electronegativity rises from left to right throughout the regular table and increases native bottom to top as well. Fluorine is the most electronegative atom and also it would certainly be most likely to result in a polar molecule. Store in mind the the development of a polar bond counts on the differing electronegativities that the atom in question. For example, two oxygen atoms carry out not do a polar bond also though both atom are very electronegative.


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Example concern #20 : The routine Table


Which that the adhering to lists atom radius increasing from smallest to biggest?


Possible Answers:



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