ALEX Classroom Resources

   View Standards     Standard(s): [SC2015] PS8 (8) 1 :

1 ) Analyze patterns within the periodic table to construct models (e.g., molecular-level models, including drawings; computer representations) that illustrate the structure, composition, and characteristics of atoms and molecules.

[SC2015] PSC (9-12) 1 :

1 ) Use the periodic table as a model to predict the relative properties and trends (e.g., reactivity of metals; types of bonds formed, including ionic, covalent, and polar covalent; numbers of bonds formed; reactions with oxygen) of main group elements based on the patterns of valence electrons in atoms.

[SC2015] CHEM (9-12) 1 :

1 ) Obtain and communicate information from historical experiments (e.g., work by Mendeleev and Moseley, Rutherford's gold foil experiment, Thomson's cathode ray experiment, Millikan's oil drop experiment, Bohr's interpretation of bright line spectra) to determine the structure and function of an atom and to analyze the patterns represented in the periodic table.

[SC2015] CHEM (9-12) 3 :

3 ) Use the periodic table as a systematic representation to predict properties of elements based on their valence electron arrangement.

a. Analyze data such as physical properties to explain periodic trends of the elements, including metal/nonmetal/metalloid behavior, electrical/heat conductivity, electronegativity and electron affinity, ionization energy, and atomic-covalent/ionic radii, and how they relate to position in the periodic table.

b. Develop and use models (e.g., Lewis dot, 3-D ball-and-stick, space-filling, valence-shell electron-pair repulsion [VSEPR]) to predict the type of bonding and shape of simple compounds.

c. Use the periodic table as a model to derive formulas and names of ionic and covalent compounds.

This lesson--the third in a series of three lesson plans about the Periodic Table of Elements--explains why the elements exhibit periodicity, why the periodic table of elements is shaped the way it is, and how we are able to predict the characteristics of elements yet to be discovered or created. Students create electron configuration diagrams that describe the arrangement of electrons around the nucleus. This lesson is the third of three lessons and is intended as an enhancement activity following the completion of the first two lessons. The first lesson, The Periodic Table of the Elements, explored the origin of the periodic table. The second lesson, The Strange World of the Electron, described the structure of the atom.

   View Standards     Standard(s): [SC2015] PS8 (8) 1 :

1 ) Analyze patterns within the periodic table to construct models (e.g., molecular-level models, including drawings; computer representations) that illustrate the structure, composition, and characteristics of atoms and molecules.

[SC2015] CHEM (9-12) 1 :

1 ) Obtain and communicate information from historical experiments (e.g., work by Mendeleev and Moseley, Rutherford's gold foil experiment, Thomson's cathode ray experiment, Millikan's oil drop experiment, Bohr's interpretation of bright line spectra) to determine the structure and function of an atom and to analyze the patterns represented in the periodic table.

The periodic table is an essential part of any chemistry course. Its simple chart-like appearance belies the wealth of information that it contains. In this lesson, students learn about the origin of the modern periodic table of elements and explore an interactive version that teaches them how to extract information from it. This activity is the first of three lessons. The Strange World of the Electron and Repeating Patterns: The Shape of the Periodic Table will help to further students' understanding of this powerful tool.

   View Standards     Standard(s): [SC2015] CHEM (9-12) 1 :

1 ) Obtain and communicate information from historical experiments (e.g., work by Mendeleev and Moseley, Rutherford's gold foil experiment, Thomson's cathode ray experiment, Millikan's oil drop experiment, Bohr's interpretation of bright line spectra) to determine the structure and function of an atom and to analyze the patterns represented in the periodic table.

In this video, Hank takes us on a tour of the earliest pioneers in the field of atomic theory. From Leucippus to Heisenberg to you--the story of atomic chemistry is all wibbly-wobbly and amazing.

   View Standards     Standard(s): [SC2015] CHEM (9-12) 1 :

1 ) Obtain and communicate information from historical experiments (e.g., work by Mendeleev and Moseley, Rutherford's gold foil experiment, Thomson's cathode ray experiment, Millikan's oil drop experiment, Bohr's interpretation of bright line spectra) to determine the structure and function of an atom and to analyze the patterns represented in the periodic table.

In this video, Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. The periodic table of elements is a concise, information-dense catalog of all of the different sorts of atoms in the universe, and it has a wealth of information to tell us if we can learn to read it.

Sensitive: This resource contains material that may be sensitive for some students. Teachers should exercise discretion in evaluating whether this resource is suitable for their class.

   View Standards     Standard(s): [SC2015] CHEM (9-12) 1 :

1 ) Obtain and communicate information from historical experiments (e.g., work by Mendeleev and Moseley, Rutherford's gold foil experiment, Thomson's cathode ray experiment, Millikan's oil drop experiment, Bohr's interpretation of bright line spectra) to determine the structure and function of an atom and to analyze the patterns represented in the periodic table.

[SC2015] CHEM (9-12) 3 :

3 ) Use the periodic table as a systematic representation to predict properties of elements based on their valence electron arrangement.

a. Analyze data such as physical properties to explain periodic trends of the elements, including metal/nonmetal/metalloid behavior, electrical/heat conductivity, electronegativity and electron affinity, ionization energy, and atomic-covalent/ionic radii, and how they relate to position in the periodic table.

b. Develop and use models (e.g., Lewis dot, 3-D ball-and-stick, space-filling, valence-shell electron-pair repulsion [VSEPR]) to predict the type of bonding and shape of simple compounds.

c. Use the periodic table as a model to derive formulas and names of ionic and covalent compounds.

In this video, Hank brings us the story of the electron. He describes how reality is a kind of music, discussing electron shells and orbitals, electron configurations, ionization and electron affinities, and how all these things can be understood via the periodic table.