Kristina v an noy chemistry periodic table
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The periodic table was created by Dmitri Mendeleev in 1885 to organize the known elements and predict properties of undiscovered elements. It arranges elements by atomic number and groups them according to their chemical and physical properties, including their atomic mass, melting and boiling points, and number of valence electrons. Elements are grouped together based on these similarities to illustrate relationships between elements and their placement within the periodic table.
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This document provides information about the periodic table, including its history and key features. It discusses how Dmitry Mendeleev discovered a pattern among the elements based on their atomic mass, which led to the creation of the periodic table. Later, Henry Moseley determined that arranging elements by atomic number (number of protons) better fit the observed patterns. The document then describes the main components of the periodic table including periods and groups, and provides examples of the types of information contained in each square. It also defines metals, non-metals and metalloids, and their distinguishing properties.
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Dmitri Mendeleev discovered the periodic table in 1869 by organizing the known elements according to their atomic mass and chemical properties. Elements are arranged in rows and columns, with metals on the left, nonmetals on the right, and noble gases on the far right. Elements within the same group have similar properties because they have the same number of valence electrons. The periodic table provides essential information about each element like their name, atomic number, symbol, mass, common uses, and interesting facts.
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This document provides information about the periodic table, including its history and key features. It discusses how Dmitry Mendeleev discovered a pattern among the elements based on their atomic mass, which led to the creation of the periodic table. Later, Henry Moseley determined that arranging elements by atomic number (number of protons) better fit the observed patterns. The document then describes the main components of the periodic table including periods and groups, and provides examples of the types of information contained in each square. It also defines metals, non-metals and metalloids, and their distinguishing properties.
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Dmitri Mendeleev discovered the periodic table in 1869 by organizing the known elements according to their atomic mass and chemical properties. Elements are arranged in rows and columns, with metals on the left, nonmetals on the right, and noble gases on the far right. Elements within the same group have similar properties because they have the same number of valence electrons. The periodic table provides essential information about each element like their name, atomic number, symbol, mass, common uses, and interesting facts.
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Kristina v an noy chemistry periodic table
- 1. Periodic TableKristina Van Noy By:
- 2. Who,Where,Why • Who- Dmitri Mendeleev • Where- The year 1985 and the year 1975 • Why-The periodic table was created to organize the elements and provide physical and chemical properties, also to group with elements like it.
- 3. How is the periodic table organized • The Periodic Table is organized by atomic number, metals, nonmetals, metalloids, periods, groups, and stability.
- 4. Relationships between the • The elements are grouped according to the element.They also go in increasing atomic mass and number. • Higher boiling/melting points as you go in the middle of the periodic table • Each group of the periodic table have the same number of the valence electrons
- 5. Boron • Name- Boron • Atomic number-10.811 • Element symbol- B
- 6. Hydrogen • Name- Hydrogen • Atomic number-1.00794 • Element symbol- H
- 7. Niobium • Name- Niobium • Atomic number-92.90638 • Element symbol- NB
- 8. Work cited • http://en.wikipedia.org/wiki/ Periodic_table • http://www.ptable.com/
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