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DO NOW!. Remembering back to Chapter 1…. What is the difference between a group and a period?. The Periodic Table. At A Glance. Periods. There are a total of seven periods of elements in modern periodic table.

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Do now
DO NOW!

  • Remembering back to Chapter 1….

    • What is the difference between a group and a period?


The periodic table

The Periodic Table

At A Glance


Periods
Periods

  • There are a total of seven periods of elements in modern periodic table.

  • The length of each period corresponds to the number of elements, which in turn determines the number of electrons that can occupy the sublevels (previously known as rings)


Example
Example:

  • Period 1

    • Two elements

  • Period 2

    • Eight elements

  • “Ring” a bell???


Periods 6 and 7
Periods 6 and 7

  • Periods 6 and 7 may look like they only contain 18 elements, but in actuality, they contain 32 elements.


Blocks
Blocks

  • There are four areas that are called blocks on the periodic table.

  • They will be

    important

    when we learn

    about electron

    configurations


Main group elements
Main Group Elements

  • The s-block and p-block make up the main group elements

  • Groups 1-2 (s), 13-18 (p)


Transition and inner transition metals
Transition and Inner Transition Metals

  • The transition metals are in groups 3-12 (d-block)

  • The inner transition metals are below the main periodic table (f-block)


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