The atomic radius of strontium is …….Å.
a) 1.12
b) 1.60
c) 1.97
d) 2.15
The atomic radius of barium is …….Å.
a) 1.12
b) 1.60
c) 1.97
d) 2.24
The second ionization energy of alkaline earth metals is greater than first ionization energy. Why?
a) less shielding effect
b) increase nuclear charge
c) less Ionization Energy
d) all of these
Sodium:
Sodium does not occur as……..in nature.
a) compound
b) free metal
c) combined state
d) salt
Sodium found in sea water in the form of …..
a) sodium chloride
b) sodium bromide
c) sodium iodide
d) all of these
