Concept explainers
(a)
Interpretation:
The number of protons, electrons, and neurons present in phosphorus-32 should be determined.
Concept Introduction:
The number of protons that are present in the nucleus of an atom is equal to the
(b)
Interpretation:
The number of protons, electrons, and neurons present in Mo-98 should be determined.
Concept Introduction:
The number of protons that are present in the nucleus of an atom is equal to the atomic number of the atom whereas the sum of number of neutrons and protons present in the nucleus of an atom is equal to the mass number of the atom.
(c)
Interpretation:
The number of protons, electrons, and neurons present in Ca-44 should be determined.
Concept Introduction:
The number of protons that are present in the nucleus of an atom is equal to the atomic number of the atom whereas the sum of number of neutrons and protons present in the nucleus of an atom is equal to the mass number of the atom.
(d)
Interpretation:
The number of protons, electrons, and neurons present in H-3 should be determined.
Concept Introduction:
The number of protons that are present in the nucleus of an atom is equal to the atomic number of the atom whereas the sum of number of neutrons and protons present in the nucleus of an atom is equal to the mass number of the atom.
(d)
Interpretation:
The number of protons, electrons, and neurons present in Gd-158 should be determined.
Concept Introduction:
The number of protons that are present in the nucleus of an atom is equal to the atomic number of the atom whereas the sum of number of neutrons and protons present in the nucleus of an atom is equal to the mass number of the atom.
(f)
Interpretation:
The number of protons, electrons, and neurons present in Bi-212 should be determined.
Concept Introduction:
The number of protons that are present in the nucleus of an atom is equal to the atomic number of the atom whereas the sum of number of neutrons and protons present in the nucleus of an atom is equal to the mass number of the atom.
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Introduction to General, Organic and Biochemistry
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- 2-85 The mass of a proton is 1.67 × 10-24g. The mass of a grain of salt is 1.0 × 10-2g. How many protons would it take to have the same mass as a grain of salt?arrow_forward2-102 An element consists of 90.51% of an isotope with a mass of 19.992 amu, 0.27% of an isotope with a mass of 20.994 amu, and 9.22% of an isotope with a mass of 21.990 amu. Calculate the average atomic mass and identify the element.arrow_forward2-89 Assume that a new element has been discovered with atomic number 117. Its chemical properties should be similar to those of astatine (At). Predict whether the new element’s ionization energy will be greater than, the same as, or smaller than that of: (a)At (b)Raarrow_forward
- 2-69 (Chemical Connections 2A) Why does the body need sulfur, calcium, and iron?arrow_forward2-31 Tin-118 is one of the isotopes of tin. Name the isotopes of tin that contain two, three, and six more neutrons than tin-118.arrow_forward2-59 You are presented with a Lewis dot structure of element X as X.. To which two groups in the Periodic Table might this element belong?arrow_forward
- 2-104 The average atomic weight of lithium is 6.941 amu. The two naturally occurring isotopes of lithium have the following masses: 6Li, 6.01512 amu; 7Li, 7.01600 amu. Calculate the percent abundance of 6Li and 7Li in naturally occurring lithium.arrow_forward2-103 The element silver has two naturally occurring isotopes: 109Ag and 107Ag with a mass of 106.905 amu. Silver consists of 51.82% 07Ag and has an average atomic mass of 107.868 amu. Calculate the mass of 109Agarrow_forward2-23 It has been said, “The number of protons determines the identity of the element.” Do you agree or disagree with this statement? Explain.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning