Answer:
The highlighted words in the explanation.
Explanation:
A clue comes by considering the noble gas elements, the rightmost column of the periodic table. These elements—helium, neon, argon, krypton, xenon, and radon—do not form compounds very easily, which suggests that they are especially stable as lone atoms. What else do the noble gas elements have in common?
The S waves arrive second
Atoms are given a different weight based on the number of protons and neutrons in the nucleus and electrons in the surrounding cloud.
having a bad odor a malodorous mixture of chemicals.