Question

define:-
1. Valency
2. Electrovalency
3. Covalency
4. Isotopes
5. Isobars.​

Answer 1

Answer:

valency is a combining capacity of a radical or an atom of element

Answer 2

Answer:

1. The capacity of an atom of an element to form chemical bonds is known as its valency.

2. The number of electrons lost or gained by one atom of an element to achieve the nearest inert gas electron configuration is known as its electrovalency.

3. The number of electrons shared by one aton of an element to achieve the nearest inert gas electron configuration is known as its covalency.

4. Isotopes are atoms of the same element having the same atomic number but different mass numbers.

5. Isobars are the atoms of different elements having different atomic numbers but the same mass number.

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