Question

Describe each of the following: (i) Ionic Bonding, (ii) Electronegativity of an element (iii) MSDS

Answer 1

1) Ionic bonding

• ​An atom consists of electrons. In order to react with other atoms electron transfer or sharing is necessary.
• When there occurs complete transfer of valance electron/s between atoms then this type of bonding is known as ionic bonding.
• When an atom gives electrons to the other atom then the atom that gives electrons will acquire a positive charge and it becomes a positively charged cation. And the atom which accepts the electron will get a negative charge. Usually metals will lose electron/s and nonmetals accepts electro/s.
• eg: NaCl ; Na will give one electron to Cl and becomes Na⁺ and Cl^-

2) Electronegativity of an element

• Electronegativity is the ability of an atom to attract shared pair of electrons towards itself. It is influenced by the distance between the nucleus and valence electrons and also by its atomic number. Paulin scale is used to represent electronegativity.

3) MSDS - (Material Safety Data Sheet)

• MSDS is a technical document which contains information about the potential hazards and the safetly working procedure of chemicals.
• It includes the health hazards due to the exposure of the chemical, procedure for storage, handling and use of the chemicals.
• It also describes the emergency procedures to be taken at times of potential danger and the measurements to be taken to protect the employees.
• Generally MSDS is prepared either by the suplier or the manufacturer ot the material.