December 2011
Beginner
560 pages
12h 42m
English
Content preview from Basic Concepts of Inorganic Chemistry, 2nd Edition
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
18
Group 17 (VIIIA) Halogens F, Cl, Br, I and At
INTRODUCTION
The elements F, Cl, Br, I and At (Astatine) are called halogens (Greek, ‘Halos’-salt and ‘gene’ — born, i.e., salt forming).
Table 18.1
| Elements | Atomic Number | Electron Configuration |
|---|---|---|
Fluorine (F) |
9 |
2[He] 2s22p5 |
Chlorine (Cl) |
17 |
10[Ne] 3s23p5 |
Bromine (Br) |
35 |
18[Ar] 3d104s24p5 |
Iodine (I) |
53 |
36[Kr] 4d105s25p5 |
Astatine (At) |
85 |
54[Xe] 4f14 5d106s26p5 |
All the elements of this group are non-metallic. Iodine is solid and has some metallic lusture. Astatine (At) is radioactive and does not occur in nature. It can be made by nuclear reaction,
The t ½ of 211At is 7.5 hrs. ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.