D block

D and F block elements

D and f block elements

Inner transition elements comprise of ..................... (d/f) block.

Discuss the difference in the magnetic properties of d and f block elements.

In the given figure, what will happen if duct D has been get blocked

A massless spring of stiffness 400 N/m is fastened at left end to a vertical wall as shown in the figure I. initially block C of mass 2 kg and block D of mass 5 kg rest on horizontal surface with block C in contact with spring (But not compressiong it.) and the block D in contact with block C block C is moved leftward compressing spring by a distance of 0.5 m and held in place while block D remains at rest as shown in the figure. Now block C is released and it accelerates to the right towards block D the surface is rough and the coefficient of friction between each block and surface is 0.1 The block collide Instantaneously stick together and move right find the velocity of combined system just after collision.

What is the basis of splitting the long form of the periodic table into s, p, d and f blocks ? Mention the characteristic properties of the elements of each block.

Which of the following statements related to the modern periodic table is incorrect? a.The p -block has 6 columns, because a maximum of 6 electrons can occupy all the orbitals in a p -shell. b.The d -blocks has 8 columns, because a maximum of 8 electrons can occupy all the orbitals in a d -subshell. c.Each block contains a number of columns equal to the number of electrons that can occupy that subshell. d.The block indicates value of azimuthal quantum number (l) for the last subshell that received electrons in building up the electronic configuration.

There block A B ,and C of equal mass m are placed one over the other on a frictionless surface (table) as shown in figure The coefficient of friction between any blocks A ,B and C is mu The maximum value of mass of block D so that the blocks A,B and C move without slipping over each other is

A cylinderical block of density d stays fully immersed in a beaker filled with two immiscible liquids of different densities d_1 and d_2 The block is in equilibrium with half of it in liquid 1 and the other half in liquid 2 as shown in the Fig. If the block is given a displacement downwards released, then neglecting friction study the following statements.