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Why electronegativity increases and decreases alternately in boron family?
Wiki User
∙ 12y ago
firstly boron due to its small size has highest electronegativity in the group.Next Al , has larger size and atomic radii so electronegativity decreases.
But in Ga due to the presence of 10 d-electrons , the shielding effect gets reduced.
As a result the attraction due to the nuclear charge increases.
The same happens with In and Tl.
By Ashank
Wiki User
∙ 12y ago
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Why acidic character of oxides of group 15 elements decreases down the group?
The ability of the hydride to donate a hydrogen ion can be directly correlated with the decreasing bond strength of the element-hydrogen bond. That is, as the bond strength decreases down the family, the acidity increases. For the same reason, the general chemical reactivity of nonmetal hydrides also increases with increasing atomic number of the nonmetal.
What is the trend in electronegativity of elements when going down the group?
Electronegativity increases as you go along a group/family Everything about elements increases as you go farther down and to the right of the periodic table except the radius, in which the largest elements are at the bottom left, and the smallest at the top right
What is the trend for ionic radius for medals?
if you mean metals ..... for the same valence the radius decreases across a period and increases down a family
What are some boron family similarities?
They are all poor metals (except for boron, which is a metalloid). The reactivity decreases as you move down the group. The atomic radius increases as you go down the group.
Which family does NOT have electronegativity values?
It is not true to say that any family does not have electronegativity values. It is tempting to say the inert gases, group 18, but we have a value for the electronegativity of xenon, 2.6 on the Pauling scale. Some of the other members of the group form compounds, though they are difficult or impossible to isolate, and their electronegativities have therefore not been measured. Whether they can thus be said to have electronegativity values or not is a moot point.
Why acidic character of oxides of group 15 elements decreases down the group?
The ability of the hydride to donate a hydrogen ion can be directly correlated with the decreasing bond strength of the element-hydrogen bond. That is, as the bond strength decreases down the family, the acidity increases. For the same reason, the general chemical reactivity of nonmetal hydrides also increases with increasing atomic number of the nonmetal.
What is the trend in electronegativity of elements when going down the group?
Electronegativity increases as you go along a group/family Everything about elements increases as you go farther down and to the right of the periodic table except the radius, in which the largest elements are at the bottom left, and the smallest at the top right
What is the trend for ionic radius for medals?
if you mean metals ..... for the same valence the radius decreases across a period and increases down a family
What patterns are observed left to right across a periodic table?
The electron pattern is the same among elements in a family. This is the reason the periodic table is arranged as it is.
Vertical columns in the periodic table indicate what information?
its called a family or group or both of them.
What trend in electronegativity do you see as you go down a group-family on the periodic table?
Electronegativity decrease down in a group.
Are coffee leaves arranged alternately?
No, opposite. Family Rubiaceae.
What are some boron family similarities?
They are all poor metals (except for boron, which is a metalloid). The reactivity decreases as you move down the group. The atomic radius increases as you go down the group.
Which family does NOT have electronegativity values?
It is not true to say that any family does not have electronegativity values. It is tempting to say the inert gases, group 18, but we have a value for the electronegativity of xenon, 2.6 on the Pauling scale. Some of the other members of the group form compounds, though they are difficult or impossible to isolate, and their electronegativities have therefore not been measured. Whether they can thus be said to have electronegativity values or not is a moot point.
What is the relevance between birth rate and gnp growth rate?
There would be a negative relationship, because as GNP increases in a country there is a higher investment in terms of education and family planning, which is a factor that decreases birth rates in a country.
What is the family name for Chlorine in the periodic table of elements?
Chlorine belongs to the family of halogens.It has electronegativity of 3.16.It has atomic number 17.
What is the most active metal on the periodic?
Francium is the most reactive metal. Reactivity increases and you go down a family and decreases as you go across a period on the Periodic Table. Francium is the farthest left and the lowest so it is the most reactive.
