Explanation:

Ionization power goes up across the duration and down as friend go under the group. This is the energy required to remove an electron. The the listed elements it would certainly be hardest to eliminate an electron from Flourine as the positive nucleus close to the electron orbitals has greater attractive force.

You are watching: Which ion has the largest atomic radius


Explanation:

Helium has actually the the smallest atomic radius. This is due to trends in the routine table, and also the efficient nuclear fee that holds the valence electrons close to the nucleus. Atom radius decreases together you move across a duration from left come right and also decreases together you relocate up a team from bottom to top. Since He is in ~ the top right-hand corner of the table, it must have the the smallest atomic radius.


Explanation:

The periodic table permits you come follow general guidelines or "trends" that are displayed on the table. Atom radius is one such trend. Together you move down in groups, more shells are included to the atom which results in an increase in radius. As you move to the right on the routine table, the nuclear charge increases which traction the elctrons closer to the nucleus. As a result, the atomic radius will decrease when relocating to the right.


Explanation:

Atomic radius decreases together you relocate left to ideal on the routine table. As atomic number increases, for this reason does the number of positive proton in the nucleus. To the much left that a period, electrons space widespread within a new electronic shell. Come the far right that the period, the electron still occupy the very same shell, yet experience greater attractive pressure toward the nucleus because of the greater number of protons present.

While that is true that flourine is the most electronegative element, this go not influence atomic radius (though the two patterns follow comparable patterns).


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Example question #11 : periodic Trends


The distinction in the atomic radii that fluorine and lithium is most similar to the distinction in the atomic radii of i beg your pardon pair that elements?


Possible Answers:

Cs and Bi


Be and B


As and Se


Na and Cl


Fe and Br


Correct answer:

Na and also Cl


Explanation:

The atom radius of aspects decreases together one moves from left come right across the periodic table. The level to i beg your pardon lithium has a bigger atomic radius 보다 fluorine is most comparable to the distinction between one more pair of facets within the exact same groups, that are also found on the left and right sides of the table.

Fluorine and also chlorine room both halogens, and also lithium and sodium are both alkali metals. Fluorine and also lithium room both in the 2nd period, and also sodium and chlorine room both in the third. As you relocate from lithium come fluorine throughout the table, you will see similar changes and patterns together if you were relocating from sodium to chlorine.


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Example question #46 : The periodic Table


Which that the complying with atoms has the largest atomic radius?


Possible Answers:

Chlorine


Oxygen


Fluorine


Sulfur


Correct answer:

Sulfur


Explanation:

When predicting how atomic radius will readjust as you relocate along the routine table, remember these 2 trends.

1. Together you relocate down the table in a given group, the atom radius of the atoms will certainly increase.

2. Together you relocate left to best in a given period, the atom radius will decrease.

Knowing this, we deserve to compare the possible options. Sulfur and also chlorine are in the shortest period, therefore they have actually the largest atomic radii. Because sulfur is come the left that chlorine top top the regular table, the will have actually a bigger atomic radius. Together a result, sulfur has the biggest atomic radius out of the possible options.


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Example question #41 : The routine Table


Which that the following atoms has actually the smallest atomic radius?


Possible Answers:

Oxygen


Chlorine


Sulfur


Nitrogen


Fluorine


Correct answer:

Fluorine


Explanation:

As you move throughout a single period (row) ~ above the periodic table, the atomic radius that each successive atom decreases. Together you move down a single group (column), the atomic radius of each succeeding atom increases. Together you move down a group, the maximum power level the the valence shell increases, therefore increasing the size of the electron cloud and also atomic radius. Together you move across a period to the right, the variety of protons in the cell nucleus increases. This also increases the attraction between the positively-charged nucleus and negatively-charged electrons, pulling the electrons in tighter and reducing the atom radius.

The smallest atoms space going come be situated toward the upper right of the routine table. Of our given answer choices, fluorine is the closest to the upper right, and also thus has the smallest radius.


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Example concern #42 : The routine Table


Which of the adhering to values walk not rise as you relocate left to ideal in a duration of the routine table?


Possible Answers:

Atomic radius


Electron affinity


Ionization energy


Electronegativity


Correct answer:

Atomic radius


Explanation:

Atomic radius will decrease as you move to the right, due to the fact that the atomic variety of the element will be increasing. This results in a much more positively fee nucleus the pulls the electron closer come the center. As a result, atom radius will notably decrease indigenous left come right.

Electronegativity, ionization energy, and electron affinity all rise to the right of the regular table.


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Example inquiry #41 : The regular Table


List the following facets in stimulate of decreasing atomic radius.

Neon, fluorine, chlorine, oxygen, sodium, magnesium

 


Possible Answers:

*


*



*


*


Correct answer:


Explanation:

Within the same period of the regular table, atomic radii decrease together there are much more charged particles to entice one another, and within the exact same group, atom radii increases. The increase from the ascending group generally speaking is bigger than the decrease under a period.

Four that the elements detailed are within the very same period, so we will location those four elements in stimulate of decreasing atomic radii:

*

Now we simply have to place Neon, Fluorine, and Oxygen, which space in the exact same period. The tendency of diminish radii with boosting atomic number is no true for noble gases, as they have a complete octet and also are slightly larger to counter electron-electron repulsion native the octet. In order of decreasing atom radius:

*

The increase from the octet is much less than the boost from electron-electron repulsion.

See more: What Is The Chemical Formula For The Sulfite Ion Is, How To Write The Chemical Formula For Sulfite Ion


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Example question #41 : The regular Table


Which the the following have the biggest atomic radii within your respective periods (row)?


Possible Answers:

Alkali metals


Transition metals


The noble gases


Halogens


Correct answer:

Alkali metals


Explanation:

The alkali steels are discovered in the first group (column) the the routine table, on the leftmost side. They have only 1 loosely bound electron in their outermost shells, and their effective nuclear charge values space low, providing them the biggest atomic radii of all the elements in your periods.


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