Question

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♥Elements Of Group 1 & Elements Of Group 17 Both Have Valency 1. Explain...♥

♥Periodicity Is Observed Due To Similar_________. ( number of valence electron/atomic number/electronic configuration )♥

♥Phosphorus Is a Reducing Agent Or Oxidizing Agent ? Give Appropriate Reason To Support Your Answer!!♥

Answer 1

1-It is bcoz group 1 has only one valence of electrons it can loose only 1 electron group 17 has 7 valence electrons it gain only 1 electron so group 1 and 17 has only 1 valency.

2-numeber of valence electron

3-As we know the reducing nature depends on the number of hydrogen atoms bonded to the central atom so in case of H3PO3 there is 1 P-H bond that releases hydrogen and act as a reducing agent.

Answer 2

1==>
This is because elements of group 1 have 1 electron in valence shell so they can donate 1 electron whereas in group 17 elements have 7 electrons in valence shell so they can accept 1 electron. Valency is the combining capacity of an element. Elements of group 1 and group 17, both are univalent (both have valency 1).

2==>
Valence Electron

3==>
A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an electron to another chemical species in a redox chemical reaction. Since the reducing agent is losing electrons , it is said to have been oxidized.

The valency of Phosphorus is +3/+5. This means that it loses electrons. Therefore, Phosphorus is a reducing agent.