Periodic Table

Loading...
Wiki info

Atoms can be subdivided into different types based on the number of protons (and thus also electrons) they have. This is called the atomic number, often symbolised Z as German for number is Zahl. Each distinct atomic number therefore corresponds to a class of atom: these classes are called the chemical elements. The chemical elements are what the periodic table classifies and organises. Hydrogen is the element with atomic number 1; helium, atomic number 2; lithium, atomic number 3; and so on. Each of these names can be further abbreviated by a one- or two-letter chemical symbol; those for hydrogen, helium, and lithium are respectively H, He, and Li. Neutrons do not affect the atom's chemical identity, but do affect its weight. Atoms with the same number of protons but different numbers of neutrons are called isotopes of the same chemical element. Naturally occurring elements usually occur as mixes of different isotopes; since each isotope usually occurs with a characteristic abundance, naturally occurring elements have well-defined atomic weights, defined as the average mass of a naturally occurring atom of that element.

A-Z Keywords

Keyword Suggestions

Linked Keywords

Images for Periodic Table

     
Periodic table - Wikipedia
Periodic table - Wikipedia
w
Everyday Science: Peridic-Table
Everyday Science: Peridic-Table
b
Printable Periodic Tables - Science Notes and Projects
Printable Periodic Tables - Science Notes and Projects
s
Trouble in the periodic table | Feature | Education in ...
Trouble in the periodic table | Feature | Education in ...
c
The Full Periodic Table Ryhme - YouTube
The Full Periodic Table Ryhme - YouTube
y
Meet 115, the Newest Element on the Periodic Table
Meet 115, the Newest Element on the Periodic Table
n
Periodic Table
Periodic Table
m
About The Periodic Table of Element Groups
About The Periodic Table of Element Groups
t
Trouble in the periodic table | Feature | Education in ...
Trouble in the periodic table | Feature | Education in ...
c
Triumvirate Environmental Creates the Periodic Table of EH&S
Triumvirate Environmental Creates the Periodic Table of EH&S
p
Free Printable Periodic Tables (PDF and PNG) - Science ...
Free Printable Periodic Tables (PDF and PNG) - Science ...
s
Q&A: The fascinating backstory of the periodic table ...
Q&A: The fascinating backstory of the periodic table ...
i
Periodic Table Wallpapers - Science Notes and Projects
Periodic Table Wallpapers - Science Notes and Projects
s
Fun facts about elements 1-20 - YouTube
Fun facts about elements 1-20 - YouTube
y
Free Printable Periodic Tables (PDF and PNG) - Science ...
Free Printable Periodic Tables (PDF and PNG) - Science ...
s
How To Read the Periodic Table - YouTube
How To Read the Periodic Table - YouTube
y
Periodic Table 150th Birthday: How Are New Elements ...
Periodic Table 150th Birthday: How Are New Elements ...
n
Additional mathematics and chemistry only: Chapter 4 Form ...
Additional mathematics and chemistry only: Chapter 4 Form ...
b
Periodic Table of Elements - PubChem
Periodic Table of Elements - PubChem
n
Free Printable Periodic Tables (PDF)
Free Printable Periodic Tables (PDF)
t
Periodic Table of Elements - PubChem
Periodic Table of Elements - PubChem
n
Metals, Nonmetals, and Metalloids on the Periodic Table ...
Metals, Nonmetals, and Metalloids on the Periodic Table ...
y
International Team of Scientists Led by Carnegie Mellon ...
International Team of Scientists Led by Carnegie Mellon ...
c
Periodic table - Wikipedia
Periodic table - Wikipedia
w
Periodic Table – Science with Mrs. Barton
Periodic Table – Science with Mrs. Barton
w
Periodic Table with Charges - 118 Elements
Periodic Table with Charges - 118 Elements
s
National Periodic Table Day – Six Different Periodic ...
National Periodic Table Day – Six Different Periodic ...
c
Wjec Science- Chemistry- Elements, the periodic table and ...
Wjec Science- Chemistry- Elements, the periodic table and ...
y
Periodic Table 2015 Collection
Periodic Table 2015 Collection
s
Grasp the Periodic Table of Elements with funny mnemonics ...
Grasp the Periodic Table of Elements with funny mnemonics ...
a
The Periodic Table Wallpaper
The Periodic Table Wallpaper
s
David M. Shribman: The Periodic Table: Roadmap to the ...
David M. Shribman: The Periodic Table: Roadmap to the ...
r
Atoms and Elements : Anatomy & Physiology
Atoms and Elements : Anatomy & Physiology
a
The Periodic Table Wallpaper
The Periodic Table Wallpaper
s
Printable Color Periodic Table Chart - 2015
Printable Color Periodic Table Chart - 2015
s
Credit: Wikipedia
Credit: Wikipedia
s
Periodic Table Wallpapers - Science Notes and Projects
Periodic Table Wallpapers - Science Notes and Projects
s
Printable Periodic Table of Elements
Printable Periodic Table of Elements
s
Chemistry images gallery
Chemistry images gallery
p
As sesquicentennial occurs, debate on arrangement of ...
As sesquicentennial occurs, debate on arrangement of ...
d

Keyword examples: · Pattern Desktop Backgrounds · Red Vintage Alarm Clock ·