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Kimia Tingkatan 4 Bab 2
BAB

2 Jirim dan Struktur Atom

Matter and the Atomic Structure

GURU
FOKUS TOPIK GURU Peta
Konsep

Jirim dan Struktur Atom
Matter and the Atomic Structure

Jirim Perkembangan Struktur atom Isotop
Matter model atom Atomic structure Isotopes
wujud Development of the
Maksud sebagai atomic model Maksud
Definition exists as Rajah susunan Definition
elektron
Sesuatu yang • Pepejal • John Dalton Atomic structure • Nombor proton
mempunyai jisim Solid • J.J. Thomson diagram sama
dan memenuhi • Cecair • Ernest Rutherford Same proton number
• Nombor nukleon
Rajah struktur
ruang Penerbitan Pelangi Sdn Bhd. All Rights Reserved
• Niels Bohr
Liquid
Something that has • Gas • James Chadwick atom berbeza
mass and occupies Gas Atomic structure Different nucleon
space diagram number
Perubahan keadaan jirim Nombor Bilangan Bilangan
Changes in the state of matter
proton neutron proton
Proton Number of Number of Jisim atom relatif
number neutrons protons Relative atomic mass
Menyerap Membebaskan Σ(% isotop × jisim isotop)
haba haba
100
Absorb heat Release heat Nombor nukleon Σ(% isotope × mass of isotope)
Nucleon number 100

Menentukan takat lebur Simbol unsur
dan takat beku naftalena membentuk Element symbol Kegunaan / Uses
Determine the melting point and form
freezing point of naphthalene • Perubatan / Medicine
Perwakilan piawai atom • Pertanian / Agriculture
Standard representation of an
atom • Nuklear / Nuclear
Graf Graf • Arkeologi / Archaeology
pemanasan penyejukan • Industri / Industry
Heating curve Freezing curve • Kejuruteraan / Engineering

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02 Bab 2.indd 14 10/29/21 5:13 PM