2. M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
IPA
(Science)
Fisika
Kimia
(Chemistry)
Biologi
3. Overview for 1st Semester
Chapter Content
Chemical analysis and investigation Introduction about tools and materials
in the lab
Quantitative chemistry Chemistry that involves calculation
How far? How fast? Chemistry in terms of energy and
kinetics
Patterrns and properties of metals Characteristic of metals, and how they
react
M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
4. What do you know about these terms?
Atom?
Molecule?
Element?
Compound?
M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
8. M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
How to write symbol of element?
9. Have you ever seen this picture?
M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
10. Write the symbol of element
Elements are written by 1 letter and 2 letters.
For some elements written by 1 letter, you must use
CAPITAL LETTER. For example: Hydrogen (H), Oxygen (O),
Nitrogen (N), etc.
For some elements written by 2 letters, you use capital
letter for FIRST LETTER ONLY. For example: Helium (He),
Magnesium (Mg), Calcium (Ca), etc.
M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
11. Name of elements in some languages
Symbol Bahasa Indonesia Latin English
Na Natrium Natrium Sodium
K Kalium Kalium Potassium
Fe Besi Ferrum Iron
Cu Tembaga Cuprum Copper
Zn Seng Zincum Zinc
Ag Perak Argentum Silver
Au Emas Aurum Gold
Sn Timah Stannum Tin
Pb Timbal Plumbum Lead
Hg Raksa Hydrargyrum Mercury
M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
12. M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
How to write symbol of compound?
13. Subscript, superscript and coefficient
M. Awaludin Noor | awaludin@kesatuanbangsa.sch.id
Subscript : number of atoms in a molecule of compound
H2O
Superscript : charge of an ion
Na+ Ca2+ Cl⎯ O2⎯
Coefficient : number of a substance involved in a chemical equation
