That's the wave's ' period '.
It's the reciprocal of the wave's frequency.
Well it would tell us the number of neutrons and protons in the nucleus so i would assume the number of energy levels.
Answer:
stress
Explanation:
Common causes of chronic insomnia include: Stress. Concerns about work, school, health, finances or family can keep your mind active at night, making it difficult to sleep. Stressful life events or trauma — such as the death or illness of a loved one, divorce, or a job loss — also may lead to insomnia.
Answer:
The most common oxidation numbers for a given element
