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Periodicity of Valence or Oxidation States Video Lecture | Chemistry Class 11 - NEET

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FAQs on Periodicity of Valence or Oxidation States Video Lecture - Chemistry Class 11 - NEET

1. What are valence or oxidation states?
Ans. Valence or oxidation states refer to the number of electrons that an atom gains, loses, or shares when it forms chemical compounds or ions. It indicates the degree of an atom's ability to combine with other atoms.
2. How can valence or oxidation states be determined?
Ans. Valence or oxidation states can be determined by analyzing the electron configuration of an atom. The valence electrons, which are the electrons in the outermost energy level of an atom, play a major role in determining the oxidation state. By considering the number of valence electrons gained or lost during chemical reactions, the oxidation state can be calculated.
3. What is the significance of knowing the valence or oxidation states?
Ans. Knowing the valence or oxidation states of elements is crucial in understanding their chemical behavior and reactivity. It helps in predicting the type of compounds an element can form and the nature of its chemical bonds. Valence or oxidation states also play a vital role in balancing chemical equations and determining the stoichiometry of reactions.
4. How does periodicity affect the valence or oxidation states?
Ans. Periodicity, which refers to the recurring pattern of properties in the periodic table, influences the valence or oxidation states of elements. The valence or oxidation states often follow a periodic trend within a group or across a period. For example, elements in the same group tend to have similar valence or oxidation states due to the similarity in their electron configurations.
5. Can valence or oxidation states change for the same element?
Ans. Yes, valence or oxidation states can change for the same element depending on the chemical reaction it undergoes. Elements can gain or lose electrons, resulting in different oxidation states. This ability to vary oxidation states allows elements to participate in a wide range of chemical reactions and form different types of compounds.
195 videos|337 docs|190 tests
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