Atomic Model

An atom consists of three types of subatomic particles:

• proton
• neutron
• electrons

Each subatomic particle have different properties. Students are advised to know their differences in terms of relative charge, relative mass and location in an atom.

In Paper 2 SPM 2006,  students are asked

• to compare the relative mass and the charge of two of the subatomic particles[4 marks].
• describe fully the atomic structure of lithium[6 marks].
• draw the structure of an atom of sodium or potassium[7 marks].

In Paper 2 SPM 2007, students are asked to

• describe and the atomic structure of hydrogen[4 marks].

Haber Process

Fritz Haber won the Nobel Prize in Chemistry in 1918 for synthesis of ammonia.

Haber Process from sweemoi khor

Read more about the

• Presentation  Speech
• Nobel Lecture

in the Nobel Prize Award Ceremony in 1920.

How to Determine Rate of Reaction

Rate Of Reaction from sweemoi khor

Vulcanization of Rubber

Charles Goodyear And Vulcanization from sweemoi khor

Latex

Rubber tree(Hevea brasiliensis) is quite common in Malaysia. The first rubber tree in Malaysia still can be found is in Kuala Kangsar, Perak. 

Latex is a white white milk-like fluid secreted by rubber tree.  It's a type of polymer, called polyisporene. Due to its elasticity, latex is widely used to produce latex glove, condoms and clothing.

Natural Rubber from sweemoi khor

Chemistry SPM Topic Links

Chemistry SPM Topic Links from sweemoi khor

This topic link of all topics of Chemistry SPM is prepared by Pn Wan Noor Afifah Wan Yusoff from SBPI Integrasi Gombak.

It showed the importance of few form 4 topics as basic to learn form 5 topics.