Question

Arrange k,f,Ba,and l in the order of decreasing atomic radius.Explain

Answer 1

answer

Ba , l, k, f

Explanation:

for this we see the period numbers that the find the number of shells of an element.

barium is in period number 6 that means the number of the shells of barium is 6

then comes iodine iodine is in period number 5 that is the number of cells of iodine is 5.

potassium, the period number of potassium is food that is the shell of potassium is 4

and lastly the fluorine which is situated in pd number 2

THE ATOMIC SIZE OF AN ELEMENT IS THE DISTANCE BETWEEN THE CENTRE OF THE NUCLEUS AND OUTERMOST SHELL OF THE ELEMENT... BUY THIS WE CAN OBSERVE WHETHER THE ATOMIC RADIUS OF THESE ELEMENTS ARE GREATER OR SMALLER