Question

(i) On moving from left to right in a period of the periodic table, atomic number of elements increases. With the increase in atomic number along the period, atomic size : (A) Increases .(B) Decreases (C) First increases then decreases (D) Remains same​

Answer 1

Answer:

The size of the atom decreases on moving from left to right in a period of the periodic table. With an increment in the atomic number, both the proton number and the nuclear positive charge increase. As the nucleus attracts the outermost electron, the size of the atom decreases