Explanation:

Ionization power goes up throughout the period and under as girlfriend go under the group. This is the energy required to remove an electron. The the provided elements it would be hardest to eliminate an electron from Flourine as the confident nucleus close to the electron orbitals has better attractive force.

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Explanation:

Helium has the the smallest atomic radius. This is as result of trends in the regular table, and the reliable nuclear charge that hold the valence electrons close come the nucleus. Atomic radius decreases as you move throughout a period from left come right and also decreases together you move up a team from bottom come top. Due to the fact that He is in ~ the top right-hand corner of the table, it must have actually the the smallest atomic radius.


Explanation:

The routine table allows you to follow general guidelines or "trends" the are displayed on the table. Atomic radius is one together trend. Together you relocate down in groups, further shells are added to the atom which results in an increase in radius. Together you move to the ideal on the regular table, the atom 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 move left to right on the routine table. As atomic number increases, for this reason does the variety of positive proton in the nucleus. To the much left of a period, electrons space widespread in ~ a brand-new electronic shell. To the far right the the period, the electrons still accounting the exact same shell, however experience greater attractive pressure toward the nucleus as result of the higher number of proton present.

While it is true that flourine is the most electronegative element, this walk not influence atomic radius (though the two trends follow similar patterns).


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Example inquiry #19 : regular Trends


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


Possible Answers:

As and also Se


Fe and Br


Cs and also Bi


Na and Cl


Be and B


Correct answer:

Na and Cl


Explanation:

The atom radius of elements decreases as one moves from left come right throughout the routine table. The level to i m sorry lithium has actually a larger atomic radius than fluorine is most similar to the difference between another pair of aspects within the very same groups, the are also found top top the left and also right sides of the table.

Fluorine and also chlorine space both halogens, and also lithium and also sodium space both alkali metals. Fluorine and lithium room both in the 2nd period, and also sodium and also chlorine room both in the third. As you relocate from lithium come fluorine across the table, you will see comparable changes and patterns as if you were relocating from salt to chlorine.


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Example inquiry #20 : regular Trends


Which of the following atoms has actually the biggest atomic radius?


Possible Answers:

Oxygen


Fluorine


Sulfur


Chlorine


Correct answer:

Sulfur


Explanation:

When predicting how atomic radius will change as you relocate along the regular table, remember these two trends.

1. Together you move down the table in a offered group, the atomic radius of the atoms will certainly increase.

2. Together you relocate left to right in a offered period, the atom radius will certainly decrease.

Knowing this, we deserve to compare the feasible options. Sulfur and chlorine are in the lowest period, therefore they have the biggest atomic radii. Due to the fact that sulfur is come the left of chlorine top top the periodic table, that will have actually a bigger atomic radius. As a result, sulfur has the biggest atomic radius the end of the feasible options.


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Example inquiry #21 : regular Trends


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


Possible Answers:

Chlorine


Nitrogen


Oxygen


Sulfur


Fluorine


Correct answer:

Fluorine


Explanation:

As friend move throughout a single duration (row) top top the routine table, the atom radius that each succeeding atom decreases. As you relocate down a solitary group (column), the atom radius of each succeeding atom increases. As you relocate down a group, the maximum energy level the the valence covering increases, therefore increasing the dimension of the electron cloud and also atomic radius. Together you move throughout a duration to the right, the number of protons in the cell core increases. This also increases the attraction between the positively-charged nucleus and negatively-charged electrons, pulling the electrons in tighter and reducing the atomic radius.

The the smallest atoms are going come be located toward the upper appropriate of the regular table. Of our offered answer choices, fluorine is the closest come the upper right, and thus has the smallest radius.


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Example inquiry #22 : regular Trends


Which that the complying with values does not increase as you move left to best in a duration of the regular table?


Possible Answers:

Ionization energy


Electronegativity


Electron affinity


Atomic radius


Correct answer:

Atomic radius


Explanation:

Atomic radius will decrease as you move to the right, since the atomic variety of the aspect will be increasing. This outcomes in a an ext positively charged nucleus the pulls the electrons closer come the center. Together a result, atom radius will significantly decrease indigenous left to right.

Electronegativity, ionization energy, and electron affinity all rise to the best of the routine table.


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Example inquiry #23 : periodic Trends


List the following facets in bespeak of decreasing atomic radius.

Neon, fluorine, chlorine, oxygen, sodium, magnesium

 


Possible Answers:


*


*


*


*


Correct answer:


Explanation:

Within the same period of the regular table, atom radii decrease as there are an ext charged corpuscle to tempt one another, and also within the very same group, atomic radii increases. The increase from the ascending group typically speaking is bigger than the decrease under a period.

Four of the elements noted are within the exact same period, so us will ar those four aspects in stimulate of decreasing atomic radii:

*

Now we simply have to place Neon, Fluorine, and Oxygen, which space in the very same period. The trend of decreasing radii with enhancing atomic number is no true for noble gases, as they have a finish octet and are slightly bigger to balance out electron-electron repulsion native the octet. In bespeak of decreasing atom radius:

*

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


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Example concern #24 : regular Trends


Which that the complying with have the largest atomic radii within their respective durations (row)?


Possible Answers:

The noble gases


Transition metals


Alkali metals


Halogens


Correct answer:

Alkali metals


Explanation:

The alkali steels are uncovered in the an initial group (column) that the routine table, ~ above the leftmost side. They have actually only 1 loose bound electron in your outermost shells, and also their reliable nuclear charge values room low, providing them the largest atomic radii of every the elements in their periods.

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