Want this question answered?
The answer choices for this question wasn't provided. Oxygen has the smallest atomic radius. The higher the electronegativity in an element makes the atomic radius smaller.
Br, not Br-
a) Sc,Ti,V,Crb) Na,K,Rb,Csc) B,Si,As,Ted) F,Cl,Br,Ie) Na,Mg,Al,SiThe correct answer of these options is a) Sc,Ti,V,Cr because they are the closest elements to each other in the periodic table.
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.
Chlorine has a larger atomic radius than fluorine. This is because chlorine has its outermost electrons in the 3rd energy level, which is farther from the nucleus, and fluorine has its outermost electrons in the 2nd energy level, which is closer to the nucleus.
The answer choices for this question wasn't provided. Oxygen has the smallest atomic radius. The higher the electronegativity in an element makes the atomic radius smaller.
Br, not Br-
Br-apex
Arranging Se, Te, and Br in order of increasing atomic size, you get: Br --> Se --> Te The trends are: atomic size increases right to left, and top to bottom.
Br is the atom with the smallest. K+ is the ion with the smallest radius. In general, the shape with the smallest radius has the smallest diameter
NA
Neutral atoms are smaller than negatively charged ions of the same element.Bromine is smaller than iodine.So neutral bromine would have the smallest radius of the species listed.
a) Sc,Ti,V,Crb) Na,K,Rb,Csc) B,Si,As,Ted) F,Cl,Br,Ie) Na,Mg,Al,SiThe correct answer of these options is a) Sc,Ti,V,Cr because they are the closest elements to each other in the periodic table.
The atomic number of Bromine (Br) is 35.
Of the noble gases, helium has the smallest atomic radius. There are different ways to define atomic radius, and the different ways give different results so I will not attempt to present values for the radii of the inert gas atoms. Instead, I will point out a practical consequence of the small atomic radius of helium. Because of the small size of its atoms, helium diffuses out of common silicate minerals much more easily than do the other inert gases. J. M. Wampler, June 17, 2009
Empirically atomic radii:Potassium: 220 pmArsenic and bromine: 115 pm
In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.