RRB Group D 15-Oct-2018 Shift 1 Solved Paper

The most metallic among these has atomic number 11 in modern periodic table. Metallic character decreases as you move across a period in the periodic table from left to right. This occurs as atoms more readily accept electrons to fill a valence shell than lose them to remove the unfilled shell. Metallic character increases as you move down an element group in the periodic table.