OXYGEN FAMILY

The Family with 6 Electrons

oxygen-nonmetal

proton-8

neutrons-8

electrons-8

Fact #1 oxygen gas is colorless, oderless, and tasteless.

Fact #2 liquid and solid oxygen are pale blue.

Melting point -218 (-360)

Boiling point -183 (-297)

- oxygen exist in all 3 forms- liquid, solid, and gas

-liquid oxygen in all three allotropic forms include normal oxygen, diatomic oxygen, or dioxygen, nascent, atomic or monatomic oxygen, and ozone or triatomi oxygen

- The Three allotropes oxygen several ways; such as, atoms and molecules

CHEMICAL PROPERTY

-oxygen is a highly reactive element highly paramagnetic, and is easily cupable of combining with other elements

- one of oxygen's most important chemical properties is that it supports combustion

- oxygen also combines with elements at room temperature, for example the formation of rust .

uses of each element

-oxygen is tasteless gas

-it have no smell or color

-the gases is used in various industrial chemical application

Sulfur

Sulfur- solid

Protons-16

Neutrons-16

Electrons-16

Fact 1- Sulfur also know as Brimestone in its natural state, has been recognized for thousands of years.

Fact 2- Sulfer uses affect our daily lives in everything from automobile tires to vertinary medicinal sales.

MP-  115c

BP- 444.6cc

Physical P. liquid d=1.89  Lower density but increase viscosity

Chemical P. burns with blue flames, magnitude of figures caused by electrons transfer between orbitals, Sulfur is insolible in water but solible in carbon disulifuide

3 uses of SULFUR

-mostly used in the production of surlfuric acid

- many uses is in the extraction of phosphate for fertiliser

-sulfur is used in the vulcenisation of black rubber.

selenium

symbol-se

Atomic number-34

Atomic mass-78.96

Proton-34

Neutrons-45

Electrons-34

Melting Point- 217.0

Boiling Point- 684.9

Density-4.79 grams per cubic centimeter

Normal phase- solid

Fact #1 - it is similar to sulfur in its forms and compound

- it converts light into electricity

- it decreases electrical resistance with increased illumination

- it can convert AC electricity to DC electricty

- it is found in several forms, but is usually prepared with a crystalline structure

- Most forms are NON toxic but hydrogen selenide ( H2SE) and other selenium compounds are very toxid

common uses

-photographic toner

-color glass

-enamels decolorize glass

-photocells

-light meters

-rectifiers

-solid state electronics ( T.V)

- an additive to stainless steel

- Herbal Health Products and Vitamins

CHEMICAL PROPERTY

The chemical properties of Selenium are similar to sulfur. Selenium combines with metals and many nonmetal directly or inqueous solution

chemical formula- Na2SeO4d

Tellurium

-Meralloids

protons-52

neutrons-70

electrons-52

melting point-449.5

Boiling point- 989.80

phase-solid

FACTS- mildly toxic

-improves the machine- ability of copper and stainless steel

- it is a relatively rare element as the rarest stable solid element in the earth's crust

USES

-thermoelectric devices

- blasting caps

- ceramics and glass coloring

PROPERTY

-can stay in crystalline and emprphous state

-hecagonal periods

- pure tellurium has instrirsic conductivity even at room temp.

CHEMICAL PROPERTY

- at room temp. tellurium resistant to oxidation

- interaction w/ nitric acid or dissolution

- one of the rare earths metal

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