Question

1. Describe the structure of the periodic table, using the following key terms:

Atomic Number, Group, Energy level, Outer electron, Period

2. Outline the historic development of the periodic table, being sure to include the work of Dӧbereiner, Newlands and Mendeleyev.

3. Evaluate the structure of the periodic table, identifying

a. how it is used and how its structure allows scientist to understanding and
predict the nature of all materials.

b. Any problems with its structure or inconsistencies in presentation (the article
at http://www.meta-synthesis.com/webbook/35_pt/pt_database.php shows
other versions of the periodic table which may help you in your evaluation)

Solution Preview

This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.

PERIODIC TABLE

1) Describe the structure of the periodic table:
An atom constitutes of subatomic particles – protons, neutrons (in the nucleus of the atom) and electrons (in the electronic shell of the atom), where the number of positively charged protons is equal to the number of negatively charged electrons, therefore the atoms are not charged. The chemical properties of an atom depend on its electronic configuration, unique to each element, which shows the total number of electrons and their arrangement in the energy levels of the electron shells. Electrons that are mostly responsible for chemical and physical properties of elements, are found in the outer electronic subshell (outer electrons - valence electrons).
Elements in the periodic table are arranged in order of increasing number of protons (Atomic Number (Z)). The periodic table consists of vertical Columns (Groups) and horizontal Rows (Periods). A new row (period) is started when a new electron shell is filled with its first electron. Columns (Groups) consist of elements with the same number of valence electrons in the outermost subshell. Depending on which subshell is the contains the valence electrons (s, p, d or f subshell) elements are placed in different parts of the periodic table, called blocks (the element which has valence electrons in d-subshell is placed in d-block)....

This is only a preview of the solution. Please use the purchase button to see the entire solution

$25.00

or free if you
register a new account!

Assisting Tutor

Related Homework Solutions

Chemistry Question
Homework Solution
$5.00
Ionization Energy
Manganese
Iron
Orbitals
Chemistry
Electronic Configuration
Electron
Chemistry Questions
Homework Solution
$38.00
TLC Plates
Chromatography
Sample Separation
Resolution
Solvent System
Ion Exchange
Partition
Chemistry Questions
Homework Solution
$10.00
Chemistry
General
PH
Solution
Concentration
Molar
Mass
Precipitating
Titrate
Hydrates Questions
Homework Solution
$15.00
Chemistry
Hydrates
Mass
Water
Moles
Anhydrous
Gypsum
Plaster
Paris
Chemistry Questions
Homework Solution
$33.00
Freezing Point
Vapor Pressure
Equilibrium Constant
Molarity
Absorbance
Molecular Weight
Halides
Get help from a qualified tutor
Live Chats