IB Chemistry Topic 3 Periodicity 3.1 Periodic Table

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IB Chemistry Topic 3 Periodicity 3.1 Periodic Table
A full explanation of anatomy of the Periodic Table. The names of the important groups Group 1 alkali metals, transistion metals, halogens, semimetals (metaloids) and noble gases. The main groupings of metals and non-metals. How and why we have anions and cations. A short introduction into some properties and trends.

0:08 Periodic table, atomic number and orbitals
0:49 Groups, periods, and types of elements
1:44 Anion and cation formation from the Periodic Table
3:50 Properties of metals and non-metals
4:58 Metals and non-metals in the Periodic Table

3.1 Periodic table
• The periodic table is arranged into four blocks associated with the four sub-levels—s, p, d, and f.
• The periodic table consists of groups (vertical columns) and periods (horizontal rows).
• The period number (n) is the outer energy level that is occupied by electrons.
• The number of the principal energy level and the number of the valence electrons in an atom can be deduced from its position on the periodic table.
• The periodic table shows the positions of metals, non-metals and metalloids.
• Deduction of the electron configuration of an atom from the element’s position

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