Periodic table
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Transcript of Periodic table
![Page 1: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/1.jpg)
Periodic Table
![Page 2: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/2.jpg)
• Elements are arrange into rows by increasing ATOMIC NUMBER
• The horizontal rows are called PERIODS and are labeled from 1 to 7.
![Page 3: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/3.jpg)
• The vertical columns are called GROUPS are labeled from 1 to 8 (or I to VIII)
• Elements in the same group tend to have similar properties and act in similar ways in reactions
![Page 4: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/4.jpg)
Alkali metals
Group 1• Have 1 electron in the outer
shell• Very reactive metals• In nature, are always found
in compounds – like salt.• Very soft• Shiny, silver
![Page 5: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/5.jpg)
ALKALINE EARTH METALSGroup 2• 2 electrons in
the outer shell• Metals• White, silvery,
and malleable
![Page 6: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/6.jpg)
Transition metals
We are not going to learn about these elements in this course
![Page 7: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/7.jpg)
HalogensGroup 7• 7 electrons in
the outer shell• Non-metals• Very reactive -
are often bonded with Group 1 Alkali Metals
![Page 8: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/8.jpg)
Noble GasesGroup 8Full outer shell
=8 electronsNon-metalsExist as gasesNot reactive
with other elements
![Page 9: Periodic table](https://reader037.fdocuments.net/reader037/viewer/2022100523/554c1ff5b4c905e7568b556c/html5/thumbnails/9.jpg)
Green squares are metalloids
Non-metalsMetals