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Group 16 Elements
Chapter Name : The P- Block Elements
Sub Topic Code : 102_12_07_10_03
Topic Name : Group 16 Elements
Sub Topic Name : Atomic And Ionic Radii
Introduction

• Due to increase in the number of shells, atomic and ionic radii increase from top to bottom in the group. • Therefore going down the group 16 elements. • Oxygen has the smallest atomic radius while Polonium has the largest atomic radius. • The size of oxygen atom is, however, exceptionally small.

Pre-Requisites:

Periodic table, elements, electronic configuration, atomic and ionic radii

Activity:

Eggs contain sulfur.

Real Life Question:

What elements are present in eggs?

Key Words / FlashCards
Key Words Definitions (pref. in our own words)
group Group is a series of elements on the periodic table that show similar properties.
Learning aids / Gadgets
Gadgets How it can be used
Egg, garlic, onion Eggs contain sulfur.
Real life uses :

Oxygen, sulfur, minerals.

Places to visit :

Kitchen.

Practical examples around us
Examples Explainations
oxygen Oxygen we breathe belongs to group 16.
What you learn in Theory:

• Due to increase in the number of shells, atomic and ionic radii increase from top to bottom in the group. • Therefore going down the group 16 elements. • Oxygen has the smallest atomic radius while Polonium has the largest atomic radius. • The size of oxygen atom is, however, exceptionally small.

What you learn in Practice:

• Due to increase in the number of shells, atomic and ionic radii increase from top to bottom in the group. • Therefore going down the group 16 elements. • Oxygen has the smallest atomic radius while Polonium has the largest atomic radius. • The size of oxygen atom is, however, exceptionally small.

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