Unit 14 · Characteristics of period and group in periodic table
Characteristics of period and group in periodic table
ScienceSubject
8 minEstimated read
Activity 14.7
Group IA and the third period side by side
Method
Write the elements of group IA in a vertical column, as they are placed in the periodic table.
Write the elements of the 3rd period in a horizontal row, as they are placed in the periodic table.
Write the electronic configuration of each element.
Write the similarities and differences in their properties on the basis of their number of shells and valencies.
Discussion
What changes are seen in the valencies as we move from top to bottom of a group and left to right of a period in the periodic table? Draw a conclusion.
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