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WorksheetsCHEMISTRY REVISION CHAPTER 1-5
Total questions: 25
Worksheet time: 28mins
The particles with no charge in an atom are the _______.
Zarah yang tiada cas dalam sesebuah atom ialah
electrons
neutrons
protons
protons and neutrons
What is the nucleon number of sodium?
Apakah nombor nukleon bagi Natrium?
11
23
12
A physical change from gas to liquid is called....
perubahan fizikal iaitu dari gas ke cecair dipanggil...
expansion/ pengembangan
evaporation/ penyejatan
condensation/ kondensasi
sublimation/pemejalwapan
Water/ Air
is element or compound?
unsur atau sebatian?
element/ unsur
compound/sebatian
Balance this chemical equation.
Seimbangkan persamaan kimia ini.
Mg + __HCl ---> MgCl2 + H2
1
2
3
4
Mengapakah karb0n-12 dipilih sebagai rujukan piawai bagi jisim atom relatif dan jisim molekul relatif?
Why carbon-12 was chosen as a reference standard for relative atomic mass and relative molecular mass?
Karbon mempunyai tiga isotop
Carbon has three isotopes
Karbon adalah unsur bukan logam
Carbon is non-metal element
Karbon adalah pepejal dan mudah dikendalikan
Carbon is a solid and easier to be handle
Karbon terletak dalam Kumpulan 14 dalam Jadual Berkala Unsur
Carbon is located in Group 14 in the Periodic Table of Elements
Kumpulan manakah mengandungi gas tidak reaktif/ gas Lengai?
Kumpulan/ Group 1
Kumpulan/Group 17
Kumpulan/Group 2
Kumpulan/Group 18
What gas is given off when group 1 elements reacts with water?
Apakah gas yang terhasil apabila unsur Kumpulan 1 bertindak balas dengan air
Hydrogen/ Hidrogen
Oxygen/ Oksigen
Carbon dioxide/ Karbon dioksida
Helium/ Helium
Transition elements has 4 special characteristics. List any 2 of the special characteristics of Transition elements
[2 marks]
An element has 16 protons. The number of electrons present in the valence shell of this element are_________.
6
2
8
4
Who discovered the electron?
Rutherford
John Dalton
Thomson
Goldstein
What is the symbol of manganese?
Mg
M
Ma
Mn
Carbon atomic number is 6. This means that an carbon atom must have
6 electrons
6 protons
6 electrons and protons
6 neutrons
Name this group: These metals are the most reactive.
Which of the following is NOT a covalent bond?
K2S
H2O
I2
CO2
Which two statements are correct about the figure shown?
It is a covalent bond.
Hydrogen atoms loss electrons and Carbon gains the atoms.
It happens on metal and on another non-metal.
The valence electrons are shared by both atoms.
What type of bond is shown in the image?
Hydrogen
Ionic
Covalent
If an atom has 7 protons and 7 electrons, its electric charge is ---
-7
-14
0
+7
