'Protons number' presentation slideshows

TAKS Objective 4

TAKS Objective 4. Matter and Change. States of Matter. All matter has mass and takes up space, yet matter can exist in different states. There are three main states of matter 1. Solid 2. Liquid 3. Gas. Solids. Every solid has a definite volume and a definite shape .

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Chapter 2

Chapter 2. Atoms, Molecules, and Ions. History. Greeks Democritus and Leucippus - atomos Aristotle- elements Alchemy 1660 - Robert Boyle- experimental definition of element. Lavoisier- Father of modern chemistry He wrote the book- used measurement. Laws. Conservation of Mass

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Chapter 2 Atoms and Elements

Chapter 2 Atoms and Elements. The Atom Atomic Number and Mass Number Isotopes. Atomic Theory. Atoms are building blocks of elements Similar atoms in each element Different from atoms of other elements Two or more different atoms bond in simple ratios to form compounds.

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Atoms and Elements

Atoms and Elements. http://www.youtube.com/watch?v=cnXV7Ph3WPk&feature=related. All about Atoms. Atoms are building blocks of elements Each Element is a special type of atom. Two or more different atoms bond in simple ratios to form compounds. Three Parts of Atoms.

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Shajara Preparatory School E. Lessons

Shajara Preparatory School E. Lessons. Structure of matter. Objectives: .To identify structure of atom. . To identify atomic number of an element. . To identify mass number of an atom.

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Isotopes ??????? ??????

Isotopes ??????? ??????. Dr. Muthana A. Al-Shemeri PhD, Clinical Biochemistry, New Zealand. Isotopes. An isotope is a variant of a particular chemical element. While all isotopes of a given element have the same number of protons, each isotope has a different number of neutrons.

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Atoms and Molecules

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Structure of the Atom

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ISOTOPES

ISOTOPES. Atom Review. All matter is made up of elements (e.g. carbon, hydrogen, etc.). The smallest part of an element is called an atom. Atoms of different elements contain different numbers of protons. The mass of an atom is almost entirely due to the number of protons and neutrons.

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The nucleus (centre of an atom) contains protons and neutrons

The nucleus (centre of an atom) contains protons and neutrons. Protons have a one positive charge. Neutrons have no charge. Electrons have a negative charge and orbit the nucleus. The number of negative electrons in an atom is the same as the number of positive protons.

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Chapter 3 Atoms and Elements

Chapter 3 Atoms and Elements. 3.4 Atomic Number and Mass Number. Atomic Number. The atomic number is specific for each element is the same for all atoms of an element is equal to the number of protons in an atom appears above the symbol of an element. 11 Na. Atomic Number. Symbol.

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D. Subatomic Particle & the Nuclear Atom

D. Subatomic Particle & the Nuclear Atom. Nucleus. contains positively charged protons and neutral neutrons. VERY dense! If a nucleus were the size of the dot in the exclamation point at the end of this sentence, its mass would be approximately as much as that of 70 automobiles!.

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Chapter 3

Chapter 3. Elements and the Periodic Table. The Periodic Table. Dmitri Mendeleev : Russian chemist who listed the elements in several vertical columns in order of increasing atomic mass. The Periodic Table. constructed the first periodic table (1869)

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Atomic Number = number of protons Mass Number = number of protons + number of neutrons

Atomic Number = number of protons Mass Number = number of protons + number of neutrons Isotopes = atoms of the same element (having the same number of protons) having different numbers of neutrons. White, cloudy stuff (precipitate) forms

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All Need to Know About Atoms

All Need to Know About Atoms. Element. A substance made from only one type of atom Cannot be broken down chemically into a simpler substance. Atom. The smallest unit of an element that has the chemical properties of that element. Protons and Electrons.

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Structure of the Atom!

Structure of the Atom!. The basic building block for ordinary matter. http:// www.youtube.com/watch?v=cnXV7Ph3WPk. What is an atom?. Protons= positively charged particle found in an atom. Neutrons=neutrally charged particle found in an atom.

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