Question

metallic and non metallic properties of periodic table

Answer 1

Metalloids : Those elements which resemble both metals and non-metals are called metalloids. They are also called semi-metals, e.g., Boron, Silicon, Germinaium, Arsenic, Antimony, Tellurium and Polonium. (iii) They are good conductors of heat and electricity. (iv) They have generally 1 to 3 valence electrons
Metallic character refers to the level of reactivity of a metal. 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
Non-metallic character relates to the tendency to accept electrons during chemical reactions. Non-metallictendency increases going from left to right across the periodic table.