Number of s-block elements are:

s-block elements are placed in

Find the number of s-block elements which can produce ammoniated cation and ammoniated electron with liquid ammonia. Li, Na, K, Rb, Cs, Ca, Sr, Ba

Write the group number of s,p and d-block elements in periodic table.

Which of the following statements are wrong (I) Bi^(3+) is more stable than Bi^(5+) (II) Mn shows +8 oxidation state (III) The oxidation state of an element is always less than or equal to its group number (IV) s-block elements show variable oxidation states The answer is

La ( lanthanum ) having atomic number "57" is a member of : S-block elements P-block elements d-block elements f-block elements

Atomic numbers of few elements as 56,57,72,89,49,38,46 among then No of S-block elements = X No of P-block elements =Y No of d-block elements =Z Then X +Z - Y value is

The radioactive s-block elements are

Atomic of the transition elements than those of the s-block elements because:

Atoms of the transition elements are smaller than those of the s-block elements, because: