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Author Question: The only noble gas that does not have the ns2np6 valence electron configuration is ________. A) ... (Read 81 times) |
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.