TASK DEFINITION: In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
PROBLEM: Question: Elements below the second period, such as silicon, do not form what as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements? Answer: n bonds

SOLUTION: Elements below the second period, such as silicon, do not form n bonds as readily as second-period elements, and when they do form, they are weaker than those formed by second-period elements.

PROBLEM: Question: What are produced in both the male and female reproductive systems in humans? Answer: sex cells

SOLUTION: Sex cells are produced in both the male and female reproductive systems in humans.

PROBLEM: Question: What is the term for a test to see if a scientific explanation is right or wrong? Answer: experiment

SOLUTION:
Experiment is the term for a test to see if a scientific explanation is right or wrong.