For the elements in group 14 (C to Pb), which property increases with increasing atomic number ?

Which of the following properties of the elements of group II (alkali earth metals) increase (s) with increasing atomic number?

Which of the following properties of the elements chlorine, bromine and iodine increase with increasing atomic number?

Which of the following properties of the elements chlorine, bromine and iodine increase with increasing atomic number?

Which of the following properties of elements of alkaline earth metal does not increase with increasing atomic number ?