Parts (a) to (e) refer to changes in the properties of elements on moving from left to right across a period of Periodic Table. For each property, choose the correct answer. (a) The non-metallic character of the elements : (i) decreases, (ii) increases, (iii) remains the same, (iv) depends on the period (b) The electronegativity : (i) depends on the number of valence electrons, (ii) remains the same, (iii) decreases, (iv) increases. (c) The ionization potential : (i) goes up and down (ii) decreases (iii) increases (iv) remains the same (d) The atomic size : (i) decreases, (ii) increases, (iii) remains the same , (iv) sometimes increases and sometimes decreases. (e) The electron affinity of the elements in groups 1 to 7 : (i) goes up and then down. (ii) decreases and then increases, (iii) increases, (iv) decreases.