The atomic numbers of three elements L,M and P are `Z,Z+1 and Z+2` respectively. If P belong to alkali metal group, then the bond present in the compound obtained by the combination of the L and P is :

Atomic number of element Z is 16. Is Z a metal or a non metal.

Atomic number of element Z is 16. State the period & group to which Z belongs.

There are four elements 'P' , 'q' , 'r' and 's' having atomic numbers Z-1, Z, Z+1 and Z+2 respectively. If the element 'q' is an insert gas, select the correct answer from the following statements. (i) 'p' has most negative electron gain enthalpy in the respective period. (ii) 'r' is an alkali metal (iii) 's' exists in stable +1 oxidation state.

X, Y and Z are three elements with atomic numbers (x-1), x and (x+1) respectively. If Y is a noble gas answer the following. To which group X and Z belong?

Which is the atomic number of another element present in the same group as the element with Z =1 3 is present

Three elements 'X', 'Y' and 'Z' have atomic numbers 7, 8 and 9 respectively. (i) State their positions (Group number and period number both) in the Modern Periodic Table. (ii) Arrange these elements in the decreasing order of their atomic radii. (iii) Write the formula of the compound formed when 'X' combines with 'Z'.