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What Should I know about periodic Trends?
What Should I know about periodic Trends?
The elements on the periodic table are organized according to their atomic numbers.
The periodic table can predict the properties of an element.
The electron configuration of an element will allow for the prediction of chemical properties.
The number of valence electrons can be determined by location on the periodic table and/or a model of the electron configuration.
video resources
video resources
This video explains common terms which describe the ways elements are classified in the periodic table.
This video explans how s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.
This video explains the difference between periods and groups in the Periodic Table and why the elements structured the way they are.
This video explains how to determine the number of valence electrons and how to draw Lewis structures for main group elements starting from the electron configuration.
This video explain why the periodic table is arranged the way it is. Exploring the orginzation of the elements and highlighting special patterns which emerge.
Just so We're Clear...
Just so We're Clear...
Atomic radius decreases as you move from left to right across a period. It increases as you move down a group/family. For instance, Francium has the largest radius.
Ionization energy increases as you move from left to right across a period and decreases as you move down a group/family.
Electronegativity increases as you move from left to right across a period and decreases as you move down a family/group.
Metals are on the left hand side of the periodic table. Nonmetals are on the right hand side of the periodic table.
The number of valence electrons can predict reactivity and are determined by location and/or electron configuration.
Elements with the same number of valence electrons will have similar chemical properties.
Elements in the same group/family will have similar chemical properties.
In addition to these facts, you need to be able to identify and develop the electron configuration of an element.
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