Stannic chloride is a molecule in which central metal atom belongs to carbon family. What is the period and atomic number of this metallic element?

0.5 moles of gaseous non-metallic X^(-) anions (having positive elect...

1.0 g of Mg atom ("atomic mass" = 24.0 "amu") in the vapour phase abso...

Find the sum of total number of 5f-electrons in Th and Ac.

Find the total number of species having two unpaired electrons from th...

If internuclear distance between A atoms in A(2) is 10Å and between B ...

Find the number of p-block elements from the following atomic numbers ...

Find the total number of 6^(th) period elements from the given atomic ...

Find the total number of paramagnetic species among the following? S...

What is the group number of Ba in periodic table?

Select the number of elements which are called transition metals. B,...

Among the following species, how many have their ionic size greater th...

Among the following find out the total number of d-block elements. L...

Number of oxides which is/are more basic as compared to Na(2)O. Li(2...

Bond length of A-A bond is 124 pm and bond length of B-B bond is 174 p...

Find the number of chemical species in which outer shell 'd' orbital i...

Find the number of transition elements in the following: Zn, Cd,Hg, ...

According to Hannay-Smith formula, if E.N difference between A and B i...

The element with the lowest atomic number that has a ground-state elec...

Find the total number of correct orders among the following. (a) Ord...

Period number of Sc = x Modern periodic table group number of TI = x...