1 / 12

Explore the Periodic Table: Elements, Characteristics & Groupings

Learn how Dmitri Mendeleev organized elements based on properties forming the periodic table. Discover metals, nonmetals, and metalloids with their unique characteristics. Explore the groups like alkali metals, alkaline earth metals, and noble gases on the table.

pravat
Download Presentation

Explore the Periodic Table: Elements, Characteristics & Groupings

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Periodic Table

  2. Periodic Table • Dmitri Mendeleev arranged the known elements by characteristics. He summarized his findings in the periodic law which states: • When the elements are arranged in order of increasing mass, certain sets of properties recur periodically. • The elements are arranged in increasing order according to atomic mass. • They are arranged in rows and columns based on characteristics of elements.

  3. Periodic Table http://www.corrosionsource.com/handbook/periodic/periodic_table.gif

  4. Periodic Table • Broadly elements can be divided into 3 groups • Metals: good conductors of heat and electricity, they are malleable (can be pounded into flat sheets), they are ductile (can be drawn out into thin wires), shiny, lose electrons, chemically reactive. • Examples include chromium, copper, strontium, and lead http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/Graphics/MixedMetals(mayFranInt.).jpe

  5. Periodic Table • Nonmetals: can be solids, liquids, or gases, poor conductors of heat and electricity, gain electrons, undergo chemical changes. • Examples include oxygen, carbon, sulfur, and bromine http://z.about.com/d/chemistry/1/0/X/6/graphite.jpg http://www.amazingrust.com/Experiments/how_to/Images/Chlorine_gas.jpg

  6. Periodic Table • Metalloids: show mixed properties between metals and nonmetals. They are called semiconductors with intermediate conductivity. • Examples include silicon, arsenic, and antimony http://www.mine-engineer.com/mining/mineral/Silicon.jpg http://www.summagallicana.it/lessico/a/arsenic%20Jachymov.jpg

  7. Periodic Table • The Metal, Metalloids, and Nonmetals are arranged in particular portions of the Periodic Table.

  8. Periodic Table • Each column of the Main group elements is called a family or group. Each group has specific characteristics • Noble gases- Group 8A Not reactive in most chemical reactions, they are considered stable with no charge. http://www.bbc.co.uk/schools/gcsebitesize/science/images/6_the_noble_gases.gif

  9. Periodic Table • Alkali Metals- Group 1A are all reactive metals, Some are explosive. Have a positive 1 charge. http://www.bbc.co.uk/schools/gcsebitesize/science/images/periodictable_group1.jpg

  10. Periodic Table • Alkaline earth metals- Group 2A- Also fairly reactive, but not as reactive as the alkali metals. Have a 2+ charge. http://images.google.com/imgres?imgurl=http://www.vectorsite.net/tpchem_eBe.png&imgrefurl=http://www.vectorsite.net/tpchem_05.html&usg=__bmu82B0xWcgEl4ies1I6VDkAye4=&h=600&w=724&sz=34&hl=en&start=5&itbs=1&tbnid=CQBSvcszpC81oM:&tbnh=116&tbnw=140&prev=/images%3Fq%3DAlkaline%2Bearth%2Bmetals%26hl%3Den%26gbv%3D2%26tbs%3Disch:1

  11. Periodic Table • Halogens- Group 7A Very reactive nonmetals. Have a negative 1 charge as ions. http://www.bbc.co.uk/schools/gcsebitesize/science/images/periodictable_group7.gif

  12. Periodic Table • The transition metals are in the middle of the table and have varying charges

More Related