Boron element exists as icosahedron molecular form.It has 'X' number of triangular faces and 'Y' number of corner. What is the value of (X-Y)?

In borax number of B-O-B bonds are X and number of boron atoms are Y. Then X+Y is

Please help Sabu decode the jail lock. Chacha Choudhary gave Sabu a formula : f_(1) = ((x)/(z)xx y), f_(2) =((f)/(v) xxu), f_(3) = ((r)/(s)xx w) Sabu can open the lock if he finds the value of 3f_(1) +f_(2) +f_(3) = key where: Number of triangular faces in a truncated tetrahedron = x Number of hexagonal faces in a truncated tetrahedron = x Number of corners in a truncated tetrahedron = z Number of square faces in a truncated octahedron = t Number of hexagonal faces in a truncated octahedron = u Number of corners in a truncated octahedron = u Number of triangular faces in a truchcated cube = w Number of octangonal faces in a truncated cube = r Number of corners in a truncated cube = s What is the KEY ?

If the number x4461 is divisible by 11, what is the face value of x ?

If the number x4562 is divisible by 9, what is the face value of x?

If the number x4461 is divisible by 11, what is the face value of x ?

If the number x4441 is divisible by 11, what is the face value of x?

An element X belongs to group 2 and another element Y belongs to group 15 of the periodic table: (a) What is the number of valence electrons in X ? (b) What is the valency of X ? (c) What is the number of valence electrons in Y ? (d) What is the valency of Y ? Explain how you have arrived at your answers.

In crystalline form boron exists as Icosahedron that has x faces and y atoms linked in this unit. The value of (x-y) =

A heavy element has atomic number X and mass number Y . Correct relation between X and Y

A cubic solid is made up of two elements X and Y . Atoms Y are present at the corners of the cube and atoms X at the body centre. What is the formula of the compound ?