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RGUKT IIIT NUZVID:N091528
The atomic radius of the Ga is less than Al because of poor screening effect
The atomic radius of Ga is slightly lesser than of Al because in going from Al to Ga, the electrons have already occupied 3d sub shell in Ga. The screening effect of these intervening electrons being poor and has less influence to decrease the effective nuclear charge, therefore the electrons in Ga experience more forces of attractions towards nucleus to result in lower size of Ga than Al
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∙ 14y ago
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∙ 14y agono
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Why the group tend of IIIA group is not regular?
because in IIIA group d-orbital interduce so Ga has greater I.P value than Al and the atomic radius of Boron and Al are nearly about same and ionic radius of Al and Ga are nearly about same as a result there is not regular change occurs in the properties of IIIA group.
What elements have the same number of valance electrons as boron?
All in the same group: 13 (or 3) like Al, Ga, In.
Why does Europium and Ytterbium show an anomaly when considering the trends of Lanthanide atomic radius across the group?
lanthanide contraction, or f-block contraction.Source:http://facultyfp.salisbury.edu/dfrieck/htdocs/212/rev/table/size.htmIn the data given for group 13 there is an interesting deviation from the expected trend for atomic radius. At first, we might expect that an atom of Ga would be larger than an atom of Al based on their positions in group. Gallium, however, is considerably smaller than Al due to a phenomenon known as the d-block contraction. As explained above, atoms get smaller as we progress from left to right across a given period, thus in period three Na is larger than Mg, Mg is larger than Al, Al is larger than Si, etc., until we arrive at Ar, the smallest atom in row. The next element, K, is in period four and is, as expected, larger than any period three atom. Again, as we progress to the right atomic radius decreases due to increasing Zeff. It is in period four, however, that we first encounter the transition elements. Atomic radius decreases as we move from Sc to Ti to V, etc., as electrons are added to the d-subshell. By the time we completely fill the d-subshell and reach the p-block elements, the atomic radius has decreased so much that Ga is actually smaller than Al. Because of the d-block contraction, the post transition elements of period four are about the same size as their period three congeners. Similarly, the occurrence of the f-block elements between the period six s- and p-blocks causes the period six p-block elements to be about the same size as their period five congeners. This effect is called the lanthanide contraction, or f-block contraction.
What is the average atomic mass Ga?
Silver is a meta element. Atomic mass of it is 108.
What instrument detectes atomic particles?
a Geiger counter (guy-ga)
Why the group tend of IIIA group is not regular?
because in IIIA group d-orbital interduce so Ga has greater I.P value than Al and the atomic radius of Boron and Al are nearly about same and ionic radius of Al and Ga are nearly about same as a result there is not regular change occurs in the properties of IIIA group.
Which elements have the same number of valence electrons as aluminum?
B, Al, Ga, In, Tl, uut
What elements have the same number of valance electrons as boron?
All in the same group: 13 (or 3) like Al, Ga, In.
Rank these elements in terms of decreasing atomic radius?
Y (biggest) Fe Ga S F (smallest)
What is halfway between Hinsevillie GA and Selma AL?
Culloden, GA
City name that start with M?
Minneapolis, MN; Montgomery, AL; Milledgeville, GA; Marietta, GA; Mechanicsville, GA; Myrtle Beach, SC; Mullins, SC; Marion, SC; Mableton, GA; McDonough, GA; Monroe, GA; Madison, GA; Memphis, TN; Moundville, AL; Montevallo, AL; Marion, AL; Millbrook, AL; Millport, AL; Macon, GA; Modesto, CA; Merced, CA; Madera, CA; McFarland, CA... and so many more! Or for Oklahoma alone: * Madill, McAlester, * Mannford, McLoud, * Marietta, Miami, * Marlow, Muldrow, * Muskogee, Mustang.
Why does Europium and Ytterbium show an anomaly when considering the trends of Lanthanide atomic radius across the group?
lanthanide contraction, or f-block contraction.Source:http://facultyfp.salisbury.edu/dfrieck/htdocs/212/rev/table/size.htmIn the data given for group 13 there is an interesting deviation from the expected trend for atomic radius. At first, we might expect that an atom of Ga would be larger than an atom of Al based on their positions in group. Gallium, however, is considerably smaller than Al due to a phenomenon known as the d-block contraction. As explained above, atoms get smaller as we progress from left to right across a given period, thus in period three Na is larger than Mg, Mg is larger than Al, Al is larger than Si, etc., until we arrive at Ar, the smallest atom in row. The next element, K, is in period four and is, as expected, larger than any period three atom. Again, as we progress to the right atomic radius decreases due to increasing Zeff. It is in period four, however, that we first encounter the transition elements. Atomic radius decreases as we move from Sc to Ti to V, etc., as electrons are added to the d-subshell. By the time we completely fill the d-subshell and reach the p-block elements, the atomic radius has decreased so much that Ga is actually smaller than Al. Because of the d-block contraction, the post transition elements of period four are about the same size as their period three congeners. Similarly, the occurrence of the f-block elements between the period six s- and p-blocks causes the period six p-block elements to be about the same size as their period five congeners. This effect is called the lanthanide contraction, or f-block contraction.
What is halfway between Gulf Shores AL and Austell GA?
Ramer, AL
How old do you have to be to move from GA to AL?
18
What is the atomic mass of the element Ga?
Gallium is a non meta element. Atomic mass of it is 70.
Which cities are approx 100 miles from Birmingham Alabama?
Huntsville, AL Montgomery, AL Auburn, AL Temple, GA Athens, AL
What is the average atomic mass Ga?
Silver is a meta element. Atomic mass of it is 108.
