Assertion (A): Noble gases do not combine with other elements.
Reason (R): The outermost orbit of noble gases are complete, they have a stable electronic configuration.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.

Question

Assertion (A): Noble gases do not combine with other elements.

Reason (R): The outermost orbit of noble gases are complete, they have a stable electronic configuration.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.

KnowledgeBoat · Accepted Answer

Both A and R are true and R is the correct explanation of A.

Explanation — Noble Gases or Inert gases are Group 18 elements. They do not react with other elements because they have complete 8 electrons in their outermost orbits (except He, which has only 2), which is stable electronic configuration. Hence both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Western music Do	Re	Me	Fa	So	La	Ti
Indian music Sa	Re	Ga	Ma	Pa	Dha	Nee
1	2	3	4	5	6	7
H	Li	Be	B	C	N	O
F	Na	Mg	Al	Si	P	S
Cl	K	Ca	Cr	Ti	Mn	Fe

Atomic No	Element	Electronic configuration	Select element of the same group
11	Sodium	……………	(Ca/N/K)
15	Phosphorus	……………	(Al/N/C)
16	Sulphur	……………	(F/Cl/O)
9	Fluorine	……………	(Ca/Cl/K)

Chemistry

Periodic Table

Answer

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