Consider the following elements: Li, Cs, Mg, Pb, Al, N
x= number of elements which can from MO type of oxides.
y= the number of elements which can from amphoteric oxide(s).
Find the value of "x+y

Consider the following elements : Li, Cs, Mg, Pb, Al, N X= number of elements which can form MO type of oxides. y= the highest oxidation state shown by any one of them. z=the number of elements which can form amphoteric oxides (s). Find the sum of x,y and z.

Which amongst the following element can from amphoteric oxide ?

Which of the following elements from amphoteric oxides?

The atomic number of an element which can not show the oxidation state of +3 is-

Which element can form the most acidic oxide

In which of the following , elements has least oxidation number ?

Which element among the following cannot form an amphoteric oxide ?