Chemistry
user avatar
user avatar
user avatar
porphyrin
  • Member for 5 years, 11 months
  • Last seen this week
Profile Activity
Stats
26,563
reputation
2.3m
reached
726
answers
0
questions
Communities
View all
About

I'm a semi-retired physical chemist.

Badges
View all badges
1
gold badge
49
silver badges
77
bronze badges
Top tags
View all tags
677
Score
217
Posts
30
Posts %
299
Score
102
Posts
14
Posts %
264
Score
71
Posts
10
Posts %
259
Score
82
Posts
11
Posts %
238
Score
68
Posts
9
Posts %
159
Score
47
Posts
6
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
32
Understanding group theory easily and quickly
Sep 7, 2016
answer
19
Why does bond angle decrease in the order H2O, H2S, H2Se?
Aug 25, 2016
answer
18
Is it possible for a substance to absorb a longer wavelength of EM wave and emit a shorter wavelength?
Jul 7, 2017
answer
16
What is resonance, and are resonance structures real?
Jul 31, 2016
answer
14
Can magnetic fields affect a chemical reaction?
Jul 23, 2016
answer
14
Is there any empirical upper limit for order of reaction?
Jul 19, 2017
answer
13
Why is the magnesium(II) ion preferred over other ions in chlorophyll?
Feb 3, 2017
answer
13
Uv vis and fluorescence spectroscopy: sensitivity
Nov 21, 2017
answer
12
Why do spin isomers of hydrogen (ortho and para hydrogen) change their nuclear spin with temperature variance?
Jan 29, 2017
answer
12
Won't the net effect of a catalyst be zero if it creates a new path with lower activation energy?
Sep 11, 2016
Top network posts
View all network posts
7
The exact mechanism of energy release durning bond formation on the atomic level
5
Total spin of system of two spin-$1/2$ particles

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.