Atoms form compounds when they combine with other atoms of different elements.
In chemistry we use symbols of elements from periodic table and subscripts to indicate the number of elements present.
In this video, we will know how are Noble gases so special and what makes them nonreactive elements.

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Timecodes
0:00-Symbols of elements in Chemistry
0:50-Electron configuration of Sodium Chloride
1:56-How to find charge in Atoms
2:12-Why are noble gases Nonreactive (do not react)
2:46-Why do atoms form bonds

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