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Science Starter:

Science Starter: Get notes from front. Periodic Table on RIGHT side . Notes on LEFT side . Update table of contents: 14 Periodic Table 1.2 15 Periodic Table Families 1.3 Send someone from group up to get ALIEN Periodic Table.

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Science Starter:

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  1. Science Starter: • Get notes from front.Periodic Table on RIGHT side. Notes on LEFT side.Update table of contents:14 Periodic Table 1.215 Periodic Table Families 1.3 • Send someone from group up to get ALIEN Periodic Table.

  2. Science Starter: Go to my website and click on sciencestarter article for TUESDAY!SAVE to desktop-if no laptop see mefor paper copyIf absent yesterday see me! Update table of contents:14 Periodic Table 1.215 Periodic Table Families 1.3Today’s Objectives:Read closely to learn structureof Periodic Table and begin Color coding PT

  3. Science Starter: Elements in a group have…a. A wide range of chemical propertiesb. The same atomic radiusc. Similar chemical propertiesd. The same number of protons • Go to WED on my WEBSITE if youwant to follow with PowerPointOPEN ISN to 14 PERIODIC TABLEToday’s learning objective- • Understand the organization ofPT and explain patterns of periods & groups

  4. Reading the Periodic TableLesson 1.2

  5. A way of organizing & classifying elements • Dmitri Mendeleev-Russian chemist • Arranged in rows and columns based on repeating patterns of properties & atomic number • Color of chemical symbol indicates state of element at room temperature-white=gas, blue=liquid, black=solid • Background color=whether element is metal, nonmetal, metalloid

  6. Columns • The vertical (up and down) columns of the periodic table (there are 18) are called groups or families. • Elements in the same group or family have similar characteristics or properties.

  7. Rows • The horizontal rows of the periodic table are called periods. • Elements in a period are not alike in properties. • The first element in a period is usually an active solid, and the last element in a period is always an inactive gas.

  8. Rows • Atomic size (number of protons) decreases from left to right across a period. • Atomic mass (number of protons) increases from left to right across a period.

  9. Rows • Metals are on the left • Non-metals are on the right

  10. Elements that have not yet been named have temporary 3 letter symbols

  11. Color the square for Hydrogen pink. Lightly color all metals yellow. Place black dots in the squares of all alkali metals. 1 ALKALI METALS • very reactive metals that do not occur freely in nature • malleable, ductile, good conductors of heat and electricity. • Low density; softer than most other metals (can be cut w/ a knife) • can explode if they are exposed to water • 1 outer electron • Used in soap, fertilizers, and medicine

  12. Draw a black triangle in each box in the group of alkaline earth metals. ALKLINE EARTH METALS • not found free in nature • Metals; Silver colored • very reactive (but less reactive than alkali metals) • 2 outer electrons • Used in electronics, antacids, fireworks, x-rays and metal alloys

  13. Draw black diagonal line across element box of transition metals! TRANSITION METALSGroups 3-12 • ductile and malleable, shiny, and conduct electricity and heat • iron, cobalt, and nickel, are the only elements known to produce a magnetic field. • 1 or 2 outer electrons • Used in jewelry, wires, coins, metal alloys

  14. RARE EARTH ELEMENTS:Lanthanides and Actinides Shade these in RED. • many are man-made • Transitions metals-placed at bottom so not too wide • Lanthanides: shiny & reactive • Actinides: ALL RADIOACTIVE & unstable • Elements 95-103 are manufactured in a lab

  15. OTHER METALS • are ductile and malleable • are solid, have a relatively high density, and are opaque • They are part of groups 13-16

  16. METALLOIDS:Trace zigzag line in black than color purpleB. Si, Ge, As, Sb, Te, Po, At • have properties of both metals and non-metals • some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators

  17. NON-METALScolor these elements green • not able to conduct electricity or heat very well • very brittle, and cannot be rolled into wires or pounded into sheets • exist in two of the three states of matter at room temperature: gases (such as oxygen) and solids (such as carbon). • have no metallic luster, and do not reflect light.

  18. Group 13: BORON FAMILYuses: cooking, LCD displays, poisons Group 14: CARBON FAMILYuses: graphite, diamonds, plumbingGroup 15: NITROGEN FAMILYuses: refrigerant, make-up, medicinesGroup 16: OXYGEN FAMILYuses: medicines, water treatment, nukes, fungicide, printers, solar panels

  19. "halogen" means "salt-former" and compounds containing halogens are called "salts" • 7 outer level electrons • Nonmetals, very reactive • exist in all three states of matter: • Solid- Iodine, Astatine • Liquid- Bromine • Gas- Fluorine, Chlorine • USED in toothpaste, water treatment, thyroid medicines HALOGENS: Color these ORANGE

  20. NOBLE GASES:Color these in BLUE • Inert gases; unreactive • Nonmetals • Full valence electrons so do NOT bond with others • Found in lights, balloons, electronics

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