Mass of one atom of the element `A` is `3.9854 xx 10^(-23)g`. How many atoms are contained in 1g of the element `A` ?

One atom of an element weigs 6.644xx10^(-26) kg.How many gram atoms are present in 40kg of the element ?

An element has a body-centred cubic (bcc) structure with a cell edge of 288 pm . The density of the element is 7.2 g//cm^(3) . How many atoms are present in 208 g of the element ?

An element assumes a cubical structure in which only 32% of the space is empty. If the density of the element is 7.2 g//cm^(3) , the number of atoms present in 100 g of that element is x xx 10^(24) where 'x' is ["volume of the unit cell is "2.39 xx 10^(-23)" cc"]

The atomic number of an element 'M' is 26. How many electrons are present in the M-shell of the element in its M^(3+) state ?

The atomic number of an element M is 20. How many electrons are present in the M-shell of the element in its M^(3+) state ?

One atom of mercury has a mass of 333 xx 10^(-24) g . Its atomic weight is

Atomic mass of the element Sulphur-

An element forms a body centered cubic (bcc) lattice with edge length of 300 pm. If the density of the element is 7.2 g cm^(-3) , the number of atoms present in 324 g of it approximately is