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# Blocks of the Periodic Table

## Vocabulary and organizational details associated with the periodic table

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Pieces of the Periodic Platform

### What are different versions of blocks of the periodic table?

The blocks of the periodic table show how orbitals fill; they additionally group the elements in an efficient manner. The s-block is comprised of groups 1A and 2A, the p-block is comprised of the groups 3A through 8A, the d-block consists of the transition metals, and the f-block consists of the inner transition metals.

Credit: CK-12
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Blocks of the periodic table [Figure1]

The periodic table allows people to group and define the 118 elements in an attempt to better understand and emphasize certain properties of elements. Blocks allow for this by highlighting the main functions of the periodic table. However, not all people agree with the current structure of the modern periodic table. In their attempts to classify the elements with their own forms of blocks, many scientists have created alternative periodic tables, all with different structures and classifications. For example, the Left Step Periodic Table classifies elements based on their orbitals and is highly popular among physicists. The Chemical Galaxy classifies chemical elements based on the cyclical nature of their characteristics. The Extended periodic table includes a g-block in order to account for hypothetical undiscovered elements.

### Creative Applications

1. Which periodic table do you prefer? Is it the standard periodic table or one of the alternative ones? (use the first resource link for more alternative periodic tables if necessary)
2. What are the properties of the flame coloration on the elements of the s-block? (use the second resource link if necessary)
3. Why is the f-block separated in the periodic table?
4. What exactly are the Lanthanides and the Actinides?