Question

write the chemical symbol for an element in period 6 and group 8a.

Explanation:

Step1: Recall Group 8A elements

Group 8A (noble gases) elements are He, Ne, Ar, Kr, Xe, Rn, Og.

Step2: Identify Period 6 element

Period 6 corresponds to the 6th row in the periodic table. Among Group 8A elements, Xe is in Period 5, Rn is in Period 6.

Answer:

$\text{Rn}$