Web Results

Periodic table


The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic ... the table used in chemistry. For other uses, see Periodic table ( disambiguation). Modern periodic ta...

The Modern Periodic Table - Genesis


Our modern day periodic table is expanded beyond Mendeleev's initial 63 ... The modern periodic table of the elements contains 18 groups, or vertical columns.

The Periodic Table of Elements
Dmitri Mendeleev generally is credited with the creation of the first periodic table, which charts the chemical elements by atomic number and valence shell electron configuration.
Browse Elements:

The chemical elements of the periodic table sorted by atomic number


The elements of the periodic table sorted by atomic number. click on any element's name for further chemical properties, environmental data or health effects.

The Periodic Table - Infoplease


Today, the periodic table organizes the elements in horizontal rows, or periods, ... One of the earliest attempts to organize the elements based on their chemical ... In each group of three, the atomic weight of one element fell halfway between ... cards, which he then laid out in rows and columns much like a game of solitaire.

Development of the periodic table - Royal Society of Chemistry


The modern periodic table lists the elements in order of increasing atomic number ... when Antoine Lavoisier grouped the elements based on their properties into gases, ... This area of the website celebrates the work of many famous scientists ...

Element Families and Descriptions of Each - Chemistry - About.com


Elements may be categorized according to element families. This is an ... Halogens - Group 17 (VIIA) - 7 valence electrons; Noble Gases - Group 18 (VIIIA) - 8 valence electrons ... Columns of the periodic table typically mark groups or families.

Group (periodic table)


In chemistry, a group is a column of elements in the periodic table of the chemical elements. ... Also, groups may be identified by their topmost element or have a specific name. ... Group number, [...

Chem4Kids.com: Elements & Periodic Table: Alkali Metals


When we told you about families, we said that they were groups of elements that react in similar ways. Hydrogen is a very special element of the periodic table ...

Popular Q&A
Q: What is the modern periodic table?
A: The modern periodic table arranges the elements by increasing atomic number rather than increasing atomic weight. The modern periodic table is a table of elemen... Read More »
Source: www.chacha.com
Q: What are the defects in modern periodic table?
A: position of hydrogen and helium. Read More »
Source: wiki.answers.com
Q: Who discovered the modern periodic table?
A: this is not the answre of my question.......the correct answer si bohr werner and bury............. Read More »
Source: wiki.answers.com
Q: Who is the father of the modern periodic table.
A: The founder and father of the periodic table is Russian Chemistry professor Dmitri Ivanovich Mendeleev. Read More »
Source: www.answers.com
Q: Who was responsible for the modern periodic table.
A: Mendeleev. Read More »
Source: www.answers.com