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The atomic radius of Na is greater than that of Si because as you move to the right across the Periodic Table there are more electrons which cause more attraction between the protons and electrons which cause them to pull closer together.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agono, according to periodic trends atomic radius decreases from left to right and increases from top to bottom
Wiki User
∙ 10y agoNa (186 pm)
S ( 105 pm)
So No, Sodium is larger
Wiki User
∙ 10y agoYes, as you go down the periodic table, the radius increases
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Of the following which has smallest atomic radius sulfur aluminum sodium barium?
Atomic radii become larger as you go from top to bottom of the periodic chart, but they get smaller as you go from left to right. Therefore, the elements with the smallest radii are in the upper right hand corner. Of S, Al, Na, and Ba, sulfur is the closest to the upper right corner and has the smallest radius of those elements.
Is atomic radii of d block elements is smaller than p block reason out?
Comparing d-block elements with s & p-block elements, it does have smaller atomic radii because of the richness in electrons & protons.
What is the difference between atomic radii and ionic radii?
atomci radii measures for an atom ionic radii measures for an ion
Why are the ionic radii of positive ions smaller than their corresponding atomic radii?
Because they have less negative electrons to hold onto & there aren't as many in the outer sublevels, so they can hold them closer to the nucleus causing the radius to shrink.
How does bromines atomic radius compared chlorine?
Bromine's atomic radii is larger than that of chlorine.
Of the following which has smallest atomic radius sulfur aluminum sodium barium?
Atomic radii become larger as you go from top to bottom of the periodic chart, but they get smaller as you go from left to right. Therefore, the elements with the smallest radii are in the upper right hand corner. Of S, Al, Na, and Ba, sulfur is the closest to the upper right corner and has the smallest radius of those elements.
Why are the ionic radii of metallic elements smaller than the atomic radii of the same elements?
The ionic radii of metallic elements is smaller than its atomic radii, because the ion has less electrons. This gives it a smaller electron cloud and makes the atom smaller.
What elements would have the largest atomic radii sulfur oxygen selenium tellurium?
This element is tellurium with a covalent atomic radius of 140 pm.
What is smaller in radius uranium or plutonium?
The atomic radii of uranium and plutonium are identical.
Is atomic radii of d block elements is smaller than p block reason out?
Comparing d-block elements with s & p-block elements, it does have smaller atomic radii because of the richness in electrons & protons.
Calcium and Sodium have very nearly the same radii?
No sodium has 11 electrons which means its valence are in the 3s2 orbit while Calcium has 20 electrons its valence electrons are in the 4s2 orbit which is much larger in terms of atomic radii
Which atom has the smallest atomic radii?
Fluorine has the smallest atomic radii because it is towards the right of the periodic table and on top.
Is smaller in radius uranium or plutonium?
The atomic radii (empirical) of plutonium and uranium are identical - 175 pm.
The range in size of most atomic radii is approximately?
The Smaller Atoms [H to Ca] are in the [single] Angstrom range.
What is the difference between atomic radii and ionic radii?
atomci radii measures for an atom ionic radii measures for an ion
How can you find out the atomic radii?
Look for a reference chart in a book or online. Look for a Periodic Table of the Elements that has the atomic radii on it.
Why does the change for the atomic radii of the elements for period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
