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Author Question: How many electrons can occupy the shell having n = 4? A) 2 B) 8 C) 10 D) 18 E) ... (Read 122 times) |
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.