Uranium is weakly radioactive because all its isotopes are unstable (with half-lives of the 6 naturally known isotopes, uranium-233 to uranium-238, varying between 69 years and 4.5 billion years).
The median annual wage for occupational therapy assistants was $59,010 in May 2016. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $39,160, and the highest 10 percent earned more than $80,090.
Occupational therapy assistants must earn an associate's degree, which generally takes two years to complete at a community college and costs about $5,000-$24,000. For example, tuition at the Community College of Rhode Island in Warwick, R.I., costs $5,800, and the program can be completed in 15 months.