Investigators measured serum selenium, erythrocyte selenium, and glutathione peroxidase values before and after three months of supplementation with one Brazil nut daily. This will bring the chlorine ion to the electron configuration of argon, a noble gas. 1995;27:109-122). Enjoying our content? How do electron configurations in the same group compare? A free radical is “any chemical species capable of independent existence that possess one or more unpaired electrons” (Int J Biochem Cell Biol. Selenium specifically has an electron configuration of 2-8-18-6. See all questions in Electron Configuration. 2 H2S(g) + 3 O2(g) Selenium is a member of the sulfur family with elements including tellurium and polonium. Questions are typically answered in as fast as 30 minutes.*. Baseline erythrocyte selenium was 72.9 μg/L, and the mean glutathione peroxidase activity was 46.6 U/g of hemoglobin (Hb). How many unpaired electrons does nitrogen have? What is the electron configuration of chromium? The baseline values of serum selenium differed substantially between the Italian and the Brazilian study. The six electrons in the outermost shell allow selenium to have a variety of valence numbers. 2008;13:17-22). Selenium actually has 2 unpaired electrons in the 4p-orbital, which makes it paramagnetic. We know that the atomic number of selenium is 34.So selenium has 34 protons and 34 electrons as the charge of electrons and protons are equal but opposite in nature.The charge of proton is +1 and the charge of electron is -1. If you wish to read unlimited content, please log in or register below. This simple intervention resulted in statistically significant increases in all measured indices. Neutral barium is. here. If you remove the outermost two electrons, you'll get the noble gas configuration of xenon. Selenium actually has 2 unpaired electrons in the 4p-orbital, which makes it paramagnetic. Neither the phosphorus nor the potassium increased significantly during the study period. In chemistry, IUPAC nomenclature is the official set of rule... Q: Draw the chair and boat conformations of cis-1-chloro3-methylcyclohexane and explain which rotamer w... Q: Co(acac) is dissolved in 5ml of HCl and filled with distilled water to the mark in a 100ml volumetri... A: 1. orbital? Median response time is 34 minutes and may be longer for new subjects. At baseline the values indicated that 98.7% of the patients had serum selenium below the normal range with a mean of 18.8 μg/L. This family has six electrons in the outermost shell. Antioxidant nutrients have been shown to be reduced in CKD patients (Nephrology. Find answers to questions asked by student like you. Please login or register first to view this content. Supplementation with selenium, by either pill or Brazil nut, has been shown to be effective in increasing selenium status and glutathione peroxidase activity. From the March 01, 2011 Issue of Renal and Urology News, Already have an account? Solution for Consider an orbital diagram of the element selenium ([Ar] 4s^2 3d^10 4p^4). 2 SO2(g) + ... A: Interpretation: The given reaction is spontaneous at room temperature or not is to be determined. Its electron configuration looks like this, Now, you'd be tempted to say that selenium has no unpaired electrons either, but you'd be wrong. a species has no unpaired electrons in its electron configuration, than that species will be diamagnetic. Dietary sources, other than Brazil nuts, rich in selenium are grains, meat, poultry, fish and dairy products. 2004; 97:15-30) reported that whole blood and plasma selenium concentrations and glutathione peroxidase activity were significantly reduced in stage 4-5 CKD patients not on dialysis compared with healthy controls. unpaired electrons does selenium have in its 4p These reactive oxygen species (ROS) are capable of oxidizing all types of macromolecules, such as proteins, lipids, and nucleic acids. Consider an orbital diagram of the element selenium ([Ar] 4s^2 3d^10 4p^4). around the world. - Conference Coverage Alternatively, Selenium is diamagnetic, as it has the outer subshell 4p4, meaning no electrons are unpaired. How many unpaired electrons does selenium have in its 4p orbital? In this study, supplementation with 200 μg/day of selenium for three months increased red blood cell and whole blood selenium concentrations, and glutathione peroxidase activity. Additionally, those patients receiving statins may be less likely to need selenium supplementation as statins may spare the body stores resulting in higher selenium status. Start with the chlorine ion, #Cl^(-)#. Once again, this will result in a diamagnetic species. So, all you have to do is write the electron configurations (I'll use noble gas shorthand notation) for all the species listed. If the opposite is true, i.e. What is the electron configuration for a sodium ion? - Full-Length Features a) 2 b) 4 c) 6 d) 8 8. This material may not be published, broadcast, rewritten or redistributed in any form without prior authorization. A: IUPAC nomenclature in organic chemistry What are some examples of electron configurations? How many valence electrons does selenium have? Copyright © 2020 Haymarket Media, Inc. All Rights Reserved Sign in At... Q: Calculate the number of molecules present in 0.74 g of sucrose (C12 H22 O11), A: Given information, Similarly, Yilmaz et al (Am J Kidney Dis. This study was the first of its kind and certainly of interest. We hope you’re enjoying the latest clinical news, full-length features, case studies, and more. Unpaired electrons are what will cause the respective atom (or ion) will be attracted to a magnetic field. Don’t miss out on today’s top content on Renal & Urology News. All of the news and departments from the print edition are fully archived on the site. Q: Scoring: Your score will be based on the number of correct matches minus the number of incorrect mat... A: Hello. a) 0 b) 1 WNO d) You’ve viewed {{metering-count}} of {{metering-total}} articles this month. As such, it is responsible for the antioxidase protection of cells against destruction by hydrogen peroxide and free radicals. Normal ranges for serum selenium are 60-120 μg/L. 1995;27:109-122). Since a noble gas configuration has no unpaired electrons, it will result in a diamagnetic species.      0.74 g of sucrose (C12 H22 O11). Your use of this website constitutes acceptance of Haymarket Media’s Privacy Policy and Terms & Conditions. 7. Since neutral chlorine has 17 electrons, the anion will have 18, one electron more. Factors such as age, inflammation, fluid retention and dialysis treatment may increase the levels of oxidative stress in patients with chronic kidney disease (CKD), resulting in the ROS formation. Zacharia et al (J Trace Elem Med Biol. Post supplementation, the values increased as follows: serum selenium to 104.0 μg/L, erythrocyte selenium to 244.1 μg/L, and to 55.9 U/g of Hb. How many How do electron configurations affect properties and trends of a compound? The normal range of glutathione peroxidase activity is 27.5-73.6 U/g of Hb. The authors suggest that statins have antioxidant properties which spare selenium reserves. - Drug Monographs Consider an orbital diagram of the element Thanks for visiting Renal & Urology News.

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