3E - periodic table

Periodic table and nomenclature
Watch the video available on the next slide.
You have to be able to explain the first 7 topics mentioned in the video.

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Slide 1: Diapositive
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Periodic table and nomenclature
Watch the video available on the next slide.
You have to be able to explain the first 7 topics mentioned in the video.

Slide 1 - Diapositive

Slide 2 - Vidéo

Elements with similar chemical properties are located in the same ...
A
period - horizontal
B
group - horizontal
C
period - vertical
D
group - vertical

Slide 3 - Quiz

Write down in your notebook:
Groups: column (vertical):
elements with similar chemical properties. Know: GR 1, 17 & 18
Periods: rows (horizontal):
increasing atomic number (amount of protons)

Slide 4 - Diapositive

Where are the metal elements located in the periodic table?
A
Left-hand side
B
Right-hand side

Slide 5 - Quiz

Write down in your notebook:
metal elements (left-hand side of periodic table except H):  
  • Shiny
  • Good conductors of heat and electricity
  • High melting points (strong metallic bond)
  • Ductile and malleable
  • Form alloys and ionic compounds.

Slide 6 - Diapositive

Which is not an element?
A
Alloy
B
Noble metal
C
Alkali metal
D
Alkaline earth metal

Slide 7 - Quiz

Write down in your notebook:
  • Alkali metals (GR1): react violently with water.
    Can’t be found pure in nature.
  • Noble metals:   unreactive metals (f.i. Au (s), Pt (s), Ag (s)).
  • Alloy:            Mixture of two or more metals
    Made in order to improve the properties (f.i. hardness or color).

Slide 8 - Diapositive

Write down in your notebook:
non-metal elements (right-hand side of periodic table & H):  
  • Poor conductors of heat and electricity
  • High melting points (strong metallic bond)
  • Brittle and dull.
  • Form ionic compounds (salts) and molecular compounds.

Slide 9 - Diapositive

Halogens (GR17): react easily, including with metals
Noble gases (GR18): unreactive colorless gases

Slide 10 - Diapositive

Vragen??
make exercise 15-19, 22-25 (2.2)

Slide 11 - Diapositive