Predict which of the following compounds are ionic and which are covalent
1. NaHCO3
2. K3PO4
3. SO2
4. NO2
5. CrPO4
Respuestas a la pregunta
In the following exercise, the type of chemical bond that unites its atoms is indicated.
Remembering that chemical elements seek their stability, depending on their nature and valence, they can give up or share electrons.
Chemical bond
The chemical bond allows the formation of molecules, which can be very stable or unstable, depending on the type of chemical bond.
Atoms lose or gain electrons, their net charge is modified, giving rise to structures known as ions. The ionic bond is established between a metallic element and a non-metallic element. Ions are formed, which by attraction of opposite charges join. They are unstable and weak bonds.
Covalent compounds share electrons. This type of bond is formed between non-metallic elements. They are strong, stable bonds, they contain a lot of energy. Atoms share their valence electrons to achieve stability.
It indicates which substance is formed by covalent bond or by ionic bond:
- NaHCO3 ionic
- K3PO4 ionic
- SO2 covalent
- NO2 covalent
- CrPO4 ionic
To conclude, chemical compounds are formed largely thanks to the formation of covalent bonds or ionic bonds.
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