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प्रश्न
Fill in the blank
Reactivity ______ down the gruop for alkali metals with increase in electropositive character
उत्तर
Reactivity increases down the gruop for alkali metals with increase in electropositive character.
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संबंधित प्रश्न
Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given
The electronegativity of iodine is ___________ that of Chlorine
Name the periodic property which relates to the tendency of an atom to attract the shared pair of electron.
The most electronegative element from the following elements is:
The tendency of an atom to attract electrons itself when combined in a covalent compound.
Among the elements of the second period, Li to Ne, pick out the element with the highest electro negativity
The electro negativities (according to Pauling) of the elements in period 3 of the periodic table are as follows.
The elements are arranged in alphabetical order:
Al Cl Mg Na P S Si
1.5 3.0 1.2 0.9 2.1 2.5 1.8
(i) Arrange the elements in the order in which they occur in the periodic table from left to right.
(The group 1 elements first, followed by the group 2 element and so on, up to group 7)
(ii) Choose the word or phrase from the brackets which correctly completes each of the following statements:
(a) The element below sodium in the same group would be expected to have a ______ (lower/higher) electro negativity than sodium and the element above chlorine which would be expected to have a ______ (lower / higher) ionization potential than chlorine.
(b) On moving from left to right in a given period, the number of shells ______ (remains the same / decreases/ increases).
(c) On moving down a group, the number of valence electrons ______ (remains the same / increases/ decreases).
Rewrite the following sentence by using the correct > (greater than) or < (less than) in the blank given :
The electronegativity of iodine is ________ that of chlorine.
Arrange the following as per the instruction given in the bracket
F,Cl,Br (Increasing electronegativity)
Arrange the following as per instruction given in the bracket.
Cs, Na, Li, K, Rb (decreasing electronegativity)
Electronegativity across the period ______.
