Question

atomic radius goes on decreasing while going from left to right in a period​

Answer 1

Answer:

Atomic radius decreases from left to right within a period. This is caused by the increase in the number of protons and electrons across a period. One proton has a greater effect than one electron; thus, electrons are pulled towards the nucleus, resulting in a smaller radius

Answer 2

Answer:

in a period as we move from left to light ..number of electrons increases in the same shell due to which z effective and negative charge increases on the atom and therefore outer electrons are attracted by nucleus more strongly due to which size decreases

Explanation:

But in 3d series it's not always decreasing ....it first devreases then becomes constant and then increases further