There are several different types of isotope notation

This preview shows page 3 - 6 out of 19 pages.

Part AEnter the appropriate symbol for an isotope of calcium­42 corresponding to the isotope notation.Express your answer as a chemical symbol using isotope notation.Hint 1. How to interpret isotope notationThere are several common notations used for isotopes, includingwhererepresents the mass number,represents the atomic number, andrepresents the chemical symbol; and­whererepresents the chemical symbol or name of the element andrepresents the mass number.Hint 2. Determine the atomic number of calcium­42What is the atomic number of calcium­42?Express your answer numerically as an integer.Hint 1. How to determine the atomic numberEach element has a unique atomic number, which is equal to the number of protons in the nucleus of an atom. Theperiodic tableof elements isarranged by the atomic number of the elements.For a given element, look above the symbol in the periodic table to find the atomic number. For example, carbon has an atomic number of 6.ANSWER:Hint 1. How to determine the number of protonsEach element has a unique atomic number, which is equal to the number of protons in the nucleus of an atom. Theperiodic tableof elements isarranged by the atomic number of the elements.For a given element, look above the symbol in the periodic table to find the atomic number. For example, carbon has an atomic number of 6.20
Part BComplete the following chart:Drag each label to the appropriate target.Hint 1. Determine the number of protons for an example atomHow many protons does neon­21 contain?Express your answer numerically as an integer.Hint 1. How to determine the number of protonsEach element has a unique atomic number, which is equal to the number of protons in the nucleus of an atom. Theperiodic tableof elements isarranged by the atomic number of the elements.For a given element, look above the symbol in the periodic table to find the atomic number. For example, carbon has an atomic number of 6.20Typesetting math: 92%
ANSWER:CorrectHint 2. Determine the number of neutrons for an example atomHow many neutrons does neon­21 contain?Express your answer numerically as an integer.Hint 1. How to determine the number of neutronsIn the isotope notation given here, neon­21, the number 21 represents the mass number of the isotope. The mass number is determined by theequation shown here:You can rearrange this equation to solve for the number of neutrons.ANSWER:Correct

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture