Lithium has two naturally occurring isotopes, 6Li and Li. The average atomic mass of lithium is 6.941. Which of thefollowing statements concerning the relative abundance of each isotope is correct?A. The abundance of Li is less than 6Li.B.C.D.E.Based on the atomic mass, only 7Li occurs naturally.The abundance of 7Li is greater than "Li.Not enough data is provided to determine the correct answer.The abundance of Li is equal to the abundance of Li.

Isotopes are defined as atoms having same atomic number but different mass number due to different…

Lithium has two naturally occurring isotopes, Li and Li. The average atomic mass of lithium is 6.941. Which of the following statements concerning the relative abundance of each isotope is correct? A. The abundance of "Li is less than Li. B. Based on the atomic mass, only Li occurs naturally. The abundance of Li is greater than Li. C. D. E. Not enough data is provided to determine the correct answer. The abundance of Li is equal to the abundance of Li.

Lithium has two naturally occurring isotopes, Li and Li. The average atomic mass of lithium is 6.941. Which of the following statements concerning the relative abundance of each isotope is correct? A. The abundance of "Li is less than Li. B. Based on the atomic mass, only Li occurs naturally. The abundance of Li is greater than Li. C. D. E. Not enough data is provided to determine the correct answer. The abundance of Li is equal to the abundance of Li.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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16. Average atomic mass is different from mass number because... A. the average atomic mass describes the mass number of a single atom, but mass number describes the average of all exact masses among isotopes of an element. B. mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass describes the weighted average of all the exact masses among isotopes of an element. C. mass number describes the exact mass of a single atom, but average atomic mass describes the average of all mass numbers. O D. mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass describes the largest mass among isotopes of an element.
Water contains small amounts of the element fluorine, which helps to strengthen tooth enamel and prevent cavities. What would you expect to happen to the fluorine element when it is added to drinking water? a. Fluorine would lose an electron and would be found as HF. b. Fluorine would gain a proton, becoming a radioactive isotope. c. Fluorine would gain an electron and would be found as F- or HF. d.Fluorine would form a covalent bond with water.
d. A sample of potassium atoms is made up of 54% 39K and 46% 41K. Use this information to find the relative atomic mass of potassium.
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Which of the following statements are true of chemical reactions? a. The number and types of atoms are the same in the products and the reactants. b. Different isotopes of the same element behave similarly. c. New elements are often formed. d. Only the valence electrons are involved.
Which of the following statements is false?a. Atoms of the same element that have different masses are called isotopesb. The masses of isotopes vary because they have a different number ofelectronsc. The mass number of an isotope is the total number of protons and neutronsin the nucleusd. The mass number of an isotope is the total number of protons and neutrons,but without being given the number of electrons.e. Every atom of a particular element has the same number of protons
2. Which element forms an ion that is larger than its atom? B. Iron A. Sodium ton 11: C. Nitrogen genera C. remains the sam D. Gold
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2. How many protons, neutrons and electrons are contained in each neutral element? 27 „Al a. b. 16 C.