п»їChemistry Practical Survey: Period 3 Elements

Brand: Titus Lee Date: 12th February 2014

Partners: Louella Jarillas, Vevaan Nguyen, Alexandro Francisco, Alif Ahmed Purpose: To examine the similarities and differences between your properties of your selection of the elements of Period 3 Speculation: Sodium is definitely the most reactive element and sulphur is definitely the least reactive Equipment and Method: Available on Page 28-9 in Heinemann Chemistry one particular Student Workbook Results:

Element Observations

Element

Findings

Metal or perhaps Non-Metal

Sodium

-Lustrous

-Forms oxides in surface quickly

-A soft metal

-silvery-white colour

Metallic

Magnesium

-Lustrous

-Forms oxides on surface

-Silvery-white colour

-Malleable but less than alkali alloys

Metal

Aluminium

-Silvery-white metal

-Malleable but lower than alkali earth metals

-Forms oxide in surface

Material by remark, metalloid by simply properties

Sulphur

-Soft pale-yellow powder

-It is odourless

Non-metal

Reactions with drinking water:

Element

Findings

Sodium

The sodium begins to fizz and heat up, publishing hydrogen. As the metallic heats up, the hydrogen can be ignited, giving of a yellow-colored orange flame. Magnesium

The magnesium pockets in normal water, however the rate of this reaction is improved when warmth is used on the water Aluminum

Seemingly, there is no reaction among aluminium and water, on the other hand there is a level of aluminum oxide protecting against it via reacting with water. This bubbles somewhat when placed in heated water. Sulphur

Sulphur does not behave with normal water in normal conditions, actually under heat.

Reaction with Hydrochloric Acid

Element

Findings

Magnesium

-The magnesium corrodes immediately, fizzing as it truly does, the material corrodes completely, emitting warmth. Aluminium

-Appears not to react however the aluminum emits temperature.

Sulphur

-No reaction by any means

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