The following metals belong to the s-block of the periodic table: Be, Mg, Na and Cs. Which of the following statements about these metals in correct? Select one: A. Electronegativity increases in the order Cs,Na,Mg,Be B. Melting point decreases in the order Cs,Na,Mg,Be C. First ionization energy decreases in the order Cs,Na,Mg,Be D. Reducing ability increases in the order Cs,Na,Mg,Be