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The California Nurses Association/National Nurses Organizing Committee (CNA/NNOC), an affiliate of National Nurses United, is a labor union and professional association of registered nurses in the United States. Since 2018, CNA/NNOC has been led by Executive Director Bonnie Castillo, RN. [2] [1]
Nursing credentials and certifications are the various credentials and certifications that a person must have to practice nursing legally. Nurses' postnominal letters (abbreviations listed after the name) reflect their credentials—that is, their achievements in nursing education, licensure, certification, and fellowship.
These nuclei capture neutrons and form indium-116, which is unstable, and decays to form tin-116, and so on. [92] [95] [n 11] In contrast, there is no such path in the r-process. The s-process stops at bismuth due to the short half-lives of the next two elements, polonium and astatine, which decay to bismuth or lead.
[1] [2] Significant portions of the City of Oakland, California have soil lead levels far in excess of 400 ppm, the level at which the US EPA suggests remedial action be taken, and far higher than 80 ppm, the level at which California’s Office of Environmental Health Hazard Assessment suggests action should be taken. [3]
Osmium is a hard, brittle, blue-gray metal, and the densest stable element—about twice as dense as lead. The density of osmium is slightly greater than that of iridium ; the two are so similar (22.587 versus 22.562 g/cm 3 at 20 °C) that each was at one time considered to be the densest element.
The World Health Organization (WHO) specifically notes that there is "no known safe blood lead concentration," and that even blood lead concentrations as low as 3.5 µg/dL (micrograms per ...
NCLEX-RN (National Council Licensure Examination-Registered Nurse). All boards of nursing in the states and territories of the United States require candidates to pass this exam for licensure as a registered nurse (RN). As of 2015, 10 provincial and territorial RN regulators in Canada have chosen the NCLEX-RN and the National Council of State ...
There is a relatively large difference in the electronegativity of lead(II) at 1.87 and lead(IV) at 2.33. This difference marks the reversal in the trend of increasing stability of the +4 oxidation state going down the carbon group; tin, by comparison, has values of 1.80 in the +2 oxidation state and 1.96 in the +4 state. [63]