Consider the value of all four quantum number for last electron and spin multiplicity ( 2s+1 ) for given two element 'X' and 'Y' in their ground state :
n
l
m
s
[2s+1]
X:
2
0
0
+1/2
1
Y:
2
1
-1
-1/2
4
The according to given information the correct statement is :
a. The bond angle (H — Y — H) of possible hydride of element Y is less than 109028′
b. The possible halide of 'X' has two vacant p-orbitals on its central atom.
c. Magnetic moment of Y is greater than X
d. X and Y element exhibits only single oxidation state