Keyword Analysis & Research: define first ionization energy

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
define first ionization energy	1.3	0.6	77	98	30
define	0.89	0.3	3274	20	6
first	1.45	1	6497	40	5
ionization	1.82	0.4	7493	96	10
energy	2	0.5	9218	94	6

Keyword	CPC	PCC	Volume	Score
define first ionization energy	0.85	1	2234	39
define first ionization energy in chemistry	1.42	0.1	853	87
define the term first ionization energy	1.86	1	1144	47