'Most atoms' presentation slideshows

Chapter 14: The Atom

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Periodic Properties

Periodic Properties. You learned how to write the electron configurations for ions. Just remember that the valence electrons get added to or removed first! So you always add to or remove from the highest principal energy level, or n value. Write the electron configuration for Cl - , Mn 2+.

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Alpha, Beta and Gamma Radiation

Alpha, Beta and Gamma Radiation. What is radiation? . Starter : why do scientists use symbols? Write down as many as can think of and what they mean. . Learning Outcomes. explain that there are three types of radioactive emissions: alpha, beta and gamma

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The Periodic Table of Elements

The Periodic Table of Elements. Element. A pure substance made up of one kind of atom that cannot be broken down into simpler substances by physical or chemical means 90 occur naturally on earth 25 were synthesized (made) by scientists. Element Song.

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Isotope notes

Isotope notes. Dalton was proved incorrect and his theory was modified. Protons define the element. Atoms that have the same number of protons are always atoms of a specific element . Example: Carbon. Neutrons can vary. BUT

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Chapter 4: Carbon

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Radioactivity and Nuclear Energy

Radioactivity and Nuclear Energy. Chapter 19. Stable and unstable. Most atoms are stable Meaning they will not fall apart But all have unstable isotopes that will fall apart over time. Isotope- atoms with a different number of neutrons

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History of the Atom Timeline Project

History of the Atom Timeline Project. By: Rachel Kohler. http://csep10.phys.utk.edu/astr162/lect/light/bohr.html. Democritus 460 BC.

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Chemical Bonding

Chemical Bonding. Chapter 22 Section 1. Vocabulary. chemical bonding: the combining of atoms to form molecules or ionic compounds chemical bond: an interaction that holds atoms or ions together

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Ionic bonding - writing formulas

Ionic bonding - writing formulas. Chem -To-Go Lesson 13 Unit 4. Quick overview. Most neutral atoms are unstable. In order to become stable, most atoms need achieve 8 valence electrons. Metals lose electrons to become stable. Many nonmetals gain electrons to become stable.

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Antimatter

Antimatter. Matter-Antimatter Propulsion Theory. What Antimatter is. Antimatter was predicted in 1929 (4) Antihydrogen produced in 1999 Antimatter is composed of the oppositely charged sub particles of most atoms Opposite of the electron is the positron (positive charge)

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Magnetism

Magnetism. MAGNETISM. Click for more info. 1. magnet. any material that attracts iron. regions in a magnet where magnetic force is strongest (labeled N and S). 2. poles. 3. magnetic force. attractive or repulsive between the poles of magnets like poles repel o pposite poles attract.

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