Question

incompletely filled period is ​

Answer 1

Explanation:

7th period is considered as incomplete period even though it has 32 elements. Because it consists of elements whose properties have not been studied properly yet. ... Elements 113, 115, 117, and 118 have all been created, and they are all named now (their names Nihonium, Moscovium, Tennessine, and Oganesson).

Answer 2

hiiiiiiiiiiiii.....

here is your answer.....

the incomplete period is seventh period

please mark brainliest.....