First, let us look at its physical properties. Bismuth is a non-toxic heavy metal with a specific gravity of 9.71 (when alloyed with 3 percent tin). Compared to lead with a specific gravity of 11.12, Bismuth is 87 percent as dense as lead. Steel, with a specific gravity of 7.86, is only 71 percent as dense as lead.
The starting salary of a Registered Nurse can range from around $28,000-$50,000 per year on average. The starting hourly wage of an RN can range from $16.50-26.00 per hour. This salary will increase over time, as nurses gain experience, certifications, and specialize in a specific area.
Being high in hierarchy, the salary of registered nurses is more than the salary of CNAs. As per the Bureau of Labor Statistics, the average income for registered nurses was $71,000 per annum, in May 2015. The mean hourly wages was reported to be $34.14. The total number of RNs employed throughout the USA was 2,745,910.