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[DOC File]Name
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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.
atomic number and mass explained

[DOC File]An experiment with 'atomic mass' - New York Science Teacher
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Ans: The mass number is an integer, which is the sum of the protons and the neutrons in the atom, while the mass in amu is an actual measure of the mass of an atom, often to five or more significant figures.
how to find atomic mass

[DOC File]Atomic Number and Mass Number
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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
atomic number chart

[DOCX File]ATOMIC MASS: the
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Feb 03, 2016 · The atomic mass is also different for every element, and also for isotopes of the same element. The atomic mass is equal to the number of protons that an element has plus the number of neutrons that an element has. This is because protons have a mass of approximately 1 amu (atomic mass unit) and neutrons have a mass of approximately 1 amu.
atomic mass minus atomic number

Mass number - Wikipedia
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 (carbon 14) 6 6 8 14 Hydrogen (tritium) 1 1 2 3 nitrogen 7 7 7 14 Hydrogen 1 1 1 2 Helium 2 2 2 (1 is also ok) 4 (3) Calcium 20 20 20 40 How are the atomic number and the number of protons related to each other? Atomic number ...
mass number vs atomic mass

[DOCX File]Atomic Number: Symbol - Mr. Sault's Classroom
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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 ...
number and atomic mass

[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 the number of protons the atom contains.
atomic mass equals the number of

[DOC File]Chemistry
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What is the atomic number and mass number for the element with 84 protons and 125 neutrons?Atomic # _____Mass # _____ Author: SE Region Accounting Created Date: 01/03/2016 17:53:00 Last modified by: JCBOE Company: Georgia Institute of Technology ...
mass number of an atom

[DOCX File]Protons, Neutrons, and Electrons Practice Worksheet
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The definition of "Atomic Mass" is that it is the relative mass of the atoms. Compare your atomic mass with other students who did not use the same number of seeds as you. Add seeds of the lightest grain one by one to the balance, until you have as close to 1 g as you can get. Count them. Since the atomic mass of the lightest grain is 1, this ...
atomic number and mass explained

[DOCX File]Atomic Number and Mass Number
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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.
how to find atomic mass

Is the mass number the atomic mass