Atomic number and atomic mass

• Difference Between Atomic Mass and Atomic Number ...

  Chemistry: Atomic Number and Mass Number. Complete the following chart and answer the questions below. [Atomic # = # Protons] P + N = Mass # Element. Name Atomic. Number Number of. Protons Number of. Neutrons Mass Number carbon 6. 6. 6. 12 oxygen 8 8. 8 16. hydrogen 1. 1. 0. 1 carbon. 6. 6 8. 14 hydrogen 1. 1. 2 3. nitrogen 7. 7. 7. 14 hydrogen ...

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• [DOC File]Name

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  To find the number of neutrons, subtract the atomic number from the atomic mass: Example for carbon: Atomic mass: 12 (rounded) Number of neutrons: 12 – 6 = 6. To find the number of electrons, look at the atomic number: Example for carbon: Atomic number: 6 Number of electrons: 6 *Complete the table for the elements with atomic numbers 1-10 ...

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• [DOC File]Atom Worksheet

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  Name Isotope Symbol Atomic Number Mass Number # of Protons # of Electrons # of Neutrons calcium-40 12 24 1 2 26 30 201 80 17 18 Part B – Average Atomic Mass. Calculate the average atomic mass for neon if its abundance in nature is 90.5% neon-20, 0.3% neon-21, and 9.2% neon-22.

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• [DOC File]Chemistry

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  Author: John Bergmann and Jeff Christopherson Created Date: 07/03/2009 10:09:00 Title: Atomic Number and Mass Number Keywords: atomic number, mass number, protons, neutrons, electrons

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• [DOCX File]Atomic Number: Symbol - Mr. Sault's Classroom

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  Atomic Mass. The number under Na is the . atomic mass. The atomic mass of Na is 22.99 amu. Amu is the abbreviation for atomic mass unit. One amu, 1u, is 1/12 the mass of an atom of carbon with 6 protons and 6 neutrons. 1u=1.661 x 10-24g. Mass Number. The . mass number.

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• [DOCX File]Atomic Number and Mass Number

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  Atomic number is 9. Mass number is 9 + 10 = 19. Mass Number: Symbol. The mass number is written on upper left corner of element. Electrons . Electrons have a negative charge and move outside the nucleus. The number of electrons is equal to the number of protons in a neutral atom. This lithium atom has.

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• [DOC File]Chapter 2 Sections 1 & 2: Atomic Structure and Subatomic ...

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  The mass number and number of protons define the type of atom. Lesson Summary. Atomic Number and Mass Number Atomic number and mass number can be used to determine the number of protons and neutrons in an atom. Each element has a unique atomic number, which is …

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