'Third energy level' diaporamas de présentation

The Periodic Table and Periodic Law

The Periodic Table and Periodic Law. Chapter 6. The Search for a Periodic Table . By 1860, scientists had already discovered 60 elements and determined their atomic masses. . They noticed that some elements had similar properties.

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How is the modern periodic table organized?

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How is the modern periodic table organized?

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platinum

platinum. overview.

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Electron Energy Levels and Configurations

Electron Energy Levels and Configurations. Unit 6 Part 2 Unit Test: Wednesday January 15. Review of Atomic Theory. Thomson discovered the electron Bohr determined that the electrons travel around the nucleus in energy levels; electrons with lower energy are closer to the nucleus

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Electron Configuration

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Intermediate bonding and bond polarity

Intermediate bonding and bond polarity. Electronegativity. Definition: The ability of an atom to attract electron density towards itself and polarise a covalent bond. The table of values of electronegativity:. Why are there no values for He/Ne/Ar?. ? + ? - H - F.

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Electrons in the Atom

Electrons in the Atom. Heisenberg Uncertainty Principle. This is the theory that states that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle. Quantum Theory.

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http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/08.html

#8 Write the electron configuration for each atom. a. carbon. 1s 2 2s 2 2p 2. http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/08.html. #8b. argon. argon has 18 electrons. 1s 2 2s 2 2p 6 3s 2 3p 6. If you add up the superscripts you get the atomic number.

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Silicon

What is its melting and boiling points?. What is it classified as?. Silicon. How many protons, neutrons, and electrons are in this atom?. What is its density?. Is there different names for its different stages in matter?. Who and when was it discovered?. What is Silicon?.

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Atoms and the Periodic Table

Atoms and the Periodic Table. All known Atoms are arranged in the Periodic Table(PT). Each type of Atom is known as an Element .There are approx 118 known elements. Columns down the way in the PT are known as Groups and Rows across the way are called Periods .

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How to draw a (Bohr) model of an atom

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Electron Configuration

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Chemistry 112/111

Chemistry 112/111. Models of the Atom. Atomic Orbitals. An atomic orbital is a region of space where an electron can be found There are energy levels existing outside the nucleus These levels correspond to the periods of the periodic table

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