Its mass number is 6.94. The measured atomic mass of lithium- 6 is6.015 u. Chlorine, Cl, is 76$\%$ chlorine- 35 and 24$\%$ chlorine-37. Some of the material remaining from the production of Lithium-6, which is depleted in Lithium-6 and enriched in Lithium-7, is made commercially available, and some has been released into the environment. I don't have an account. Lithium has two naturally occurring isotopes: lithium-6 and lithium-7. The atomic mass is the total number of protons and neutrons in the nucleus. Search for Other Answers. If theâ¦ It has a mass of 7.016 Da. Hence, the isotopic composition of lithium can vary somewhat depending on its source. The atomic mass of antimony is 121.8 g/mol. 6) For 1 atom of Lithium-6, I needed _____ atoms of Lithium-7 for an average atomic mass of 6.944. Mass number of Lithium-7: 7Explanation:- The atomic number of an element is equal to the number of protons inside its nucleus- The mass number of â¦ Lithium is the key component of lithium-ion battery technology, which is becoming increasingly more prevalent in electronics. Explain the basis for your prediction. In the depleted lithium, the relative abundance of lithium-6 can be reduced to as little as 20 percent of its nominal value, giving an atomic mass for the discharged [clarification needed] lithium that can range from about 6.94 Da to about 7.00 Da. Based on this data alone, calculate the average atomic mass for lithium to the correct number of significant digits. Ask an American Elements Materials Science Engineer, Publish your research on the American Elements website. One of them has an abundance of $92.5 \%,$ and the other has an abundance of $7.5 \% .$ Knowing that the atomic mass of lithium is $6.941,$ which is the more abundant isotope? The factors that affect the average atomic mass of a mixture of isotopes is the relative abundance of each different isotope. Polarization sensitive microstructures fabricated on lithium niobate surfaces by using femtosecond laser pulses. How many Li-6 atoms are present, on average, in a 1000 -atom sample of lithium? The number of electrons in each of Lithium's shells is [2, 1] and its electron configuration is [He] 2s1. The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass of 6.0151 atomic mass units. Click 'Join' if it's correct. A little knowledge turned out to be a â¦ The atomic mass (m a or m) is the mass of an atom. Assume the following: Atomic number of lithium = 3 Atomic mass of lithium = 7.0144 atomic mass units. The number of electrons which it has in the 1st shell (principal energy level) is? Atomic mass of Lithium is 6.941 u. Li-6 mass = 6.015121amu Li-7 mass = 7.016003amu Lithium Mass = 6.94049amu What is percent ...” in Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions. Lithium-6 has a mass of 6.0151 amu and lithium-7 has a mass of 7.0160 amu. Which isotope of nitrogen is found in nature? 2003 (75) 683-800 Atomic weights of the elements 2009 by M.E. Lithium has two naturally occurring isotopes: Li-6 (natural abundance 7.5$\%$ ) and Li-7 (natural abundance 92.5$\%$ ). Read More Inspire your inbox – Sign up for daily fun facts about this day in history, updates, and special offers. Click to sign up. 6 amu 31. It is a soft, silvery-white alkali metal. It has the highest specific heat and electrochemical potential of any element on the period table and the lowest density of any elements that are solid at room temperature. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement. Lithium-7Li, Lithium, isotope of mass 7, (7)Li, (7)3Li, 7Li, Li-7, Lithium-7. 2. Its atomic number is 3. Get an answer to your question âLithium has two isotopes.Li-6 and Li-7. 1 Structures Expand this section. Number 28 is in reference to the average atomic mass based upon the masses of the isotopes of a particular element and their percent natural abundance. The number of electrons which it has in the 1st shell (principal energy level) is? Element Lithium (Li), Group 1, Atomic Number 3, s-block, Mass 6.94. Up the remaining 92.58 percent makes up 7.42 percent of all naturally ccuring lithium bookmark a video atoms and lithium-7! Doing any calculations, predict the approximate atomic mass of an atom tritium, much more than lithium-6 Surface Wave! ( 7 ) Chlorine has two stable lithium 7 atomic mass: lithium-6 and lithium-7 a. 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