For elements in groups one to seven, the last number in the electron arrangement

As you go across each period from left to right the outer shell gradually becomes filled with electrons. the outer shell contains just one electron on the left hand side of the table, but is filled by the time you get to the right hand side.moving  down each group, you can see that  the number of electrons in the outermost shell is the same as the group number number.each element in a group therefore has the same number of electrons in its outer shell.i hope it you!

Given the solutions are 1.0 mol of in 1.0 kg water and 1.0 mol glucose in 1.0 kg water.

Osmotic pressure of a solution can be calculated using the formula:

Osmotic pressure, π = iMRT

Where i is the number of ions the solute can give in solution.

M is the molar concentration.

R is gas constant.

T is the temperature in Kelvin scale.

When we compare both the solutions, all the other variables that the osmotic pressure are same except the i value.

For solution i = 4  as it can give 4 ions in solution, 1 and 3 ions.

Glucose is a non electrolyte, therefore it cannot give any ions in solution. So, for glucose solution i = 1

Hence, we can conclude that the osmotic pressure of solution will be 4 times that of glucose solution of same concentration.