Loading

Module 1: Elementos de la primera serie de transición

Apuntes
Study Reminders
Support
Text Version

Set your study reminders

We will email you at these times to remind you to study.
  • Monday

    -

    7am

    +

    Tuesday

    -

    7am

    +

    Wednesday

    -

    7am

    +

    Thursday

    -

    7am

    +

    Friday

    -

    7am

    +

    Saturday

    -

    7am

    +

    Sunday

    -

    7am

    +

XSIQ
*

Chemistry - The f-block

The f-block

The periodic table can be regarded as having four distinct blocks - s, p,
d, and f - with elements located there according to the outermost subshell
being filled. We have dealt with the s and p blocks - the main group
elements, and the d block - the transition elements. But what about the
f-block?

Study of the periodic table shows that the f-block elements interrupt the
third and fourth series of the transition metals.

The f-block contains two sets of elements:

* the lanthanides, which follow the element lanthanum - La

* the actinides, which follow the element actinium - Ac.

The lanthanides are a 14-element set following the element lanthanum, with
all elements characterised by having the as their outermost
(highest-energy) subshell.

The actinides are a 14-element set following the element actinium, with
all elements characterised by having the as their outermost (highest
energy) subshell.

Notable among the lanthanides and actinides are uranium (element number 92
- involved in fission reactions) and the transuranium elements [1] -
produced from uranium.

Previous | Next

Links:
------
[1] http://alison.com/#