'Atomic mass units' diaporamas de présentation

Atoms and Elements Chapter 4

Atoms and Elements Chapter 4. Tro, 2 nd ed. ELEMENTS AND ATOMS. All known substances on Earth and probably the universe are formed by combinations of more than 100 elements.

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Atoms and Elements Chapter 4

Atoms and Elements Chapter 4. Tro, 2 nd ed. ELEMENTS AND ATOMS. All known substances on Earth and probably the universe are formed by combinations of more than 100 elements.

940 views • 69 slides

Chapter 19 Molecules and Compounds

Chapter 19 Molecules and Compounds. Section 19.1. Most matter is in the form of compounds . Most atoms are unstable unless combined. Atoms combine in molecules . Chemical bonds are formed when atoms combine. Valence shell electrons (outermost) are involved in bonding .

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Lecture 3 The Periodic Table, Atomic Structure, Isotopes and Ions, Basic Nomenclature ( Ch 2)

Lecture 3 The Periodic Table, Atomic Structure, Isotopes and Ions, Basic Nomenclature ( Ch 2). Dr Harris Suggested HW: ( Ch 2) 15, 19, 23, 28, 38, 49, 52, 58. Metallic vs Nonmetallic Elements.

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Chemistry

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Conversations with the Earth Tom Burbine tburbine@framingham.edu

Conversations with the Earth Tom Burbine tburbine@framingham.edu. Quiz on Thursday. Moon Mars. Need to account for these things when you form the Moon. The Moon's low density (3.3 g/cm 3 ) shows that it does not have a substantial iron core like the Earth does.

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How is the modern periodic table organized?

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Atomic Mass

Atomic Mass. Atoms are so small, it is difficult to discuss how much they weigh in grams Use atomic mass units. an atomic mass unit (amu) is one twelfth the mass of a carbon-12 atom This gives us a basis for comparison The decimal numbers on the table are atomic masses in amu.

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Chapter 3

Chapter 3. Atoms: The Building Blocks Of Matter. Section 3-1. The Atom: From Philosophical Idea To Scientific Theory. Two Theories on the Nature of Matter. It is continuous and can be infinitely broken down into smaller and smaller parts.

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Negative particles

Neutral particles. Negative particles. Positive particles. Why do most of the alpha particles pass through?. 1 angstrom = 1 x 10 -10 m. Proton charge = +, mass = 1.0073 amu atomic mass units: 1amu = 1.6605402 x 10 -24 g. nucleus. Neutron charge = neutral, mass = 1.0087. Electron

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Cell Theory

Cell Theory. The cell is the basic unit of _______in living organisms All organisms are made of ________ cells All cells ________ from other cells.

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Measuring Matter

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Chemical Composition Chapter 8

Chemical Composition Chapter 8. Atomic Masses. Balanced equation tells us the relative numbers of molecules of reactants and products C + O 2 ? CO 2 1 atom of C reacts with 1 molecule of O 2 to make 1 molecule of CO 2

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10.1 Mole: a Measurement of Matter

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Introduction to Atomic Theory

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THE MOLE CONCEPT

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ISOTOPIC NOTATION isotopes are atoms with the same number of protons but different number of neutrons

ISOTOPIC NOTATION isotopes are atoms with the same number of protons but different number of neutrons. A Z X A = mass number (the total number of protons + neutrons) Z = atomic number (the total number of protons) X = element symbol.

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The Mole

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ISOTOPIC NOTATION isotopes are atoms with the same number of protons but different number of neutrons

ISOTOPIC NOTATION isotopes are atoms with the same number of protons but different number of neutrons. A Z X A = mass number (the total number of protons + neutrons) Z = atomic number (the total number of protons) X = element symbol.

1.6k views • 9 slides

The Structure of the Atom

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