Keyword Analysis & Research: why are noble gases called noble gases

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why are noble gases called noble gases	0.26	0.1	4444	60	38
why	0.21	0.3	8965	66	3
are	1.1	0.2	1873	46	3
noble	0.8	0.8	3001	86	5
gases	0.99	0.6	2767	45	5
called	1.85	0.1	6240	13	6
noble	0.28	1	6308	72	5
gases	0.81	0.7	631	55	5

Keyword	CPC	PCC	Volume	Score
why are noble gases called noble gases	1.55	0.6	7468	43