In the modern periodic table, non-metallic elements are located in the p-block except hydrogen and helium which are belonged to s-block. Physically, non-metals tend to have low melting point, boiling point and density. Chemically, non-metals tend to have relatively high ionization energy, electron affinity, and electronegativity.
Non-metals have a tendency to form ionic compounds since they are always in the position to gain electrons and they also form covalent compound by the sharing of electrons. There are chemically inactive non-metals which are called inert gases they belong to zero group(group 18) in the periodic table.
What we are going to study
In this chapter we are going to study about Chemistry of atomic and nascent hydrogen, Oxygen and its allotropes, Ozone, Nitrogen, Halogen, Carbon, Phosphorus and Sulphur.
Key Objectives
When you have finished studying this unit, you should able to:
- understand chemistry of hydrogen as: atomic and nascent hydrogen, isotopes of hydrogen. describe the allotropes of oxygen, carbon, phosphorus, and sulphur.
- identify the different types of oxides.
- describe the preparation of some compounds: ozone, halogens, halogen acids, hydrogen sulphide.
- measures of ozone layer depletion. understand the cause of inertness of nitrogen, harmful effects of ammonia, oxyacids of nitrogen (introduction) and ring test for nitrate ion.
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Chemistry Of Non-metals Class 11 Chemistry Notes PDF
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