Question

Define valency by taking examples of silicon and oxygen.

Answer fast pls​

Answer 1

Answer:

• The combining capacity of the element is known as valency.
• It is determined by the number of valence shell electrons present in the atom.
• Example:
• (1) Silicon has atomic number 14. The electronic configuration of silicon is 2, 8, 4. The number of valence electrons is 4. So the valency is 4.
• (2) Oxygen has an atomic number 8. The electronic configuration is 2, 6. The valency is (8-6) = 2.

Answer 2

✯Question✯

❥Define valency by taking examples of silicon and oxygen.

✯Answer✯

✯Definition:

❥Valency is defined as the combining capacity of the element. It is determined by the number of valence shell electrons present in the atom.

• ❥If the number of valence electrons is less than or equal to 4 so the valency is the same as the number of electrons present.

• ❥If the number of valence electrons is more than 4 then the valency is 8-(the number of valence shell electrons).

✯Example:

• ❥(1) Silicon has atomic number 14. The electronic configuration of silicon is 2, 8, 4. The number of valence electrons is 4. So the valency is 4.

• ❥(2) Oxygen has an atomic number 8. The electronic configuration is 2, 6. The valency is (8-6)=2.

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