Question

What is group number and period number of following:
(I) potassium
(II) calcium
(III) chlorine
(IV) Argon
(V) sulphur​

Answer 1

Answer:

potassium-group-1 Period-4

calcium g-2 p-4

chlorine-g-17 p-3

Argon-g-18 p-3

Sulphur g-16 p-3

Explanation:

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Answer 2

Answer:

Public facilities play very important role in the development of a country as these include education, health, transportation, banking which are the base for any kind of development.

Public facilities play very important role in the development of a country as these include education, health, transportation, banking which are the base for any kind of development.(i) Education : Education is the most important public facility which is required both by the rich as well as the poor.

Public facilities play very important role in the development of a country as these include education, health, transportation, banking which are the base for any kind of development.(i) Education : Education is the most important public facility which is required both by the rich as well as the poor.(ii) Public Distribution System (PDS) : Public distribution system is another important facility which plays an important role in providing food security to the people.

Public facilities play very important role in the development of a country as these include education, health, transportation, banking which are the base for any kind of development.(i) Education : Education is the most important public facility which is required both by the rich as well as the poor.(ii) Public Distribution System (PDS) : Public distribution system is another important facility which plays an important role in providing food security to the people.(iii) Transportation : Many transport facilities like railway, airways, waterways, banking become affordable only if they are provided collectively.