Define principal quantum number and explain with relevant example?

Explanation:

The principal quantum number is the quantum number denoted by n and which indirectly describes the size of the electron orbital. It is always assigned an integer value (e.g., n = 1, 2, 3...), but its value may never be 0. An orbital for which n = 2 is larger, for example, than an orbital for which n = 1.

Education is essential for everyone. It is the level of education that helps people earn respect and recognition. In my opinion, it is  necessary part of life both personally and socially. However, the unequal standard of education is still a major problem that needs to be solved.

The importance of education is unquestionable for every single person. It goes without saying that education has a positive effect on human life. All people need to study. Only with the arrival of education can people gain knowledge and grow their view over the world. For example, learning by watching TV or reading books gives people a huge amount of information about anything they are interested in such as mathematics, current news, exchange rates, other countries' cultures and so on. Apparently, people may become more useful and civilzed if better educated. In areas where residents are not able to receive an appropriate education, life cannot be as thriving and successful as locations where there is a high standard for education. 

Secondly, education plays such a basic role on our society that we cannot even imagine a life without it. It is a determined element for the civilization of human society. Not only does It helps us develop healthy surroundings but it also generates an advance community. As a matter of fact, everything we create today is based on the knowledge that we obtain throughout our life by way of education. This assists scientists in inventing equipment and devices, resulting in a high technology nowadays. The more developed life becomes, the more necessary education is for everyone. 

Although education has a significant influence on life, the average education is not the same in different areas. As a result, strategies are being made to resolve the problems. Without education, life would be catastrophic and detrimental.  Therefore, to this day, we are trying or best to make education global and accessible for everyone particularly the poor and the disabled. There are still some places where the inhabitants are almost completely uneducated, causing a serious lack of knowledge. Addtionally, every child should should be given equal opportunities to learn and study. Because the development of a country depends vastly on the standard of education, it must do everything in its power to improve it. Although the educational systems of different countries are not similar but they have to share a common goal which is to provide its citizens a suitable and proper learning. 

In conclusion, edcation is absolutely beneficial for society on the whole. It is a life-long process to each person that need to be reinforced throughout life. However, we need education system that may eliminate the inability to read or write and may provide common people an access not only to basic education but also to higher and technical education.