List in order of increasing atomic size: F,Na,K,Mg,Ne.
A)K

Question

List in order of increasing atomic size: F,Na,K,Mg,Ne.
A)K < Mg < Ne < Na < F
B)Ne < Mg < K < Na < F
C)Ne < F < Mg < Na < K
D)Mg < F < Ne < Na < K
E)K < Na < Mg < F < Ne

Quizplus · Accepted Answer

Atomic size generally increases as you move down a group in the periodic table and decreases as you move across a period from left to right. Therefore, among the given elements, neon (Ne) and fluorine (F) are the smallest because they are to the right of the period, magnesium (Mg) is slightly larger, sodium (Na) is larger still, and potassium (K), being below sodium in the same group, is the largest.

List in Order of Increasing Atomic Size: F,Na,K,Mg,Ne