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Answer True of False: 1. A proton and an electron have the same mass but opposite charges. 2. The mass of an electron is considerably smaller than that of a neutron. 3. An atomic mass unit (amu) is a unit of mass.

Answer True of False: 1. A proton and an electron have the same mass but opposite charges. 2. The mass of an electron is considerably smaller than that of a neutron. 3. An atomic mass unit (amu) is a unit of mass.

Chemistry
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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iz (page 1 of 4) IIO IEV TVIT Answer True of False: 1. A proton and an electron have the same mass but opposite charges. of 2. The mass of an electron is considerably smaller than that of a neutron. Jestion 3. An atomic mass unit (amu) is a unit of mass. 4. One amu is equal to 1 gram. 5. The protons and neutrons of an atom are found in the nucleus. 6. The electrons of an atom are found in the space surrounding the atom. 수 7. All atoms of the same element have the same number of protons. 8. All atoms of the same element have the same number of electrons. 9. Electrons and protons repel each other. 10. The size of an atom is approximately the size of its nucleus. 11. The mass number of an atom is the sum of the number of protons and neutrons in in the nucleus of that atom. 12. For most atoms, their mass number is the same as their atomic number. 13. The three isotopes of hydrogen (hydrogen-1, hydrogen-2, and hydrogen-3) differ only in the number of neutrons in the nucleus. 14. Hydrogen-1 has only one neutron in its nucleus, hydrogen-2 has two neutrons in its nucleus, and hydrogen-3 has three neutrons. 15. All isotopes of an element have the same number of electrons. 16. Most elements found on Earth are mixtures of isotopes. 17. The atomic weight of an element given in the Periodic Table us the weighted average of the masses of its isotopes found on Farth 18. The atomic weights of most elements are whole numbers. 19. Most of the mass of an atom is found in its nucleus. 20. The density of a nucleus is its mass number expressed in grams. AOC
Transcribed Image Text:iz (page 1 of 4) IIO IEV TVIT Answer True of False: 1. A proton and an electron have the same mass but opposite charges. of 2. The mass of an electron is considerably smaller than that of a neutron. Jestion 3. An atomic mass unit (amu) is a unit of mass. 4. One amu is equal to 1 gram. 5. The protons and neutrons of an atom are found in the nucleus. 6. The electrons of an atom are found in the space surrounding the atom. 수 7. All atoms of the same element have the same number of protons. 8. All atoms of the same element have the same number of electrons. 9. Electrons and protons repel each other. 10. The size of an atom is approximately the size of its nucleus. 11. The mass number of an atom is the sum of the number of protons and neutrons in in the nucleus of that atom. 12. For most atoms, their mass number is the same as their atomic number. 13. The three isotopes of hydrogen (hydrogen-1, hydrogen-2, and hydrogen-3) differ only in the number of neutrons in the nucleus. 14. Hydrogen-1 has only one neutron in its nucleus, hydrogen-2 has two neutrons in its nucleus, and hydrogen-3 has three neutrons. 15. All isotopes of an element have the same number of electrons. 16. Most elements found on Earth are mixtures of isotopes. 17. The atomic weight of an element given in the Periodic Table us the weighted average of the masses of its isotopes found on Farth 18. The atomic weights of most elements are whole numbers. 19. Most of the mass of an atom is found in its nucleus. 20. The density of a nucleus is its mass number expressed in grams. AOC
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