The covalent radius of Br2 is ……
a) 114pm
b) 72pm
c) 133pm
d) 143pm
The covalent radius of I2 is ……..
a) 114pm
b) 72pm
c) 133pm
d) 143pm
Ionization process is often ………. process
a) endothermic
b) exothermic
c) a & b both
d) none of these
The minimum energy required to remove valence electron to form positive ion is called
a) ionization energy
b) electronegativity
c) electron affinity
d) all of these
Ionization energy is measured in.…………...
a) Jmole-1
b) kJmole-1
c) a & b both
d) none of these
1st ionization energy of sodium is …………...
a) + 496kj/mol
b) - 496kj/mol
c) + 738kj/mol
d) - 738kj/mol
