Page 203 - MODUL KIMIA A+XPLOSIVE SPM (LATEST)

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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U”) ANSWERS

PAPER 2
SECTION A

NO MARK SCHEME MARKS
1. (a) (i) Proton// neutron r: p/n 1
(ii) Atoms of the same elements which have the same proton number/ number 1
of proton but different nucleon number/ number of neutron.
Atom sama unsur yang mempunyai nombor proton/bilangan proton yang
sama tetapi nombor nucleon/ bilangan neutron yang berbeza.
(iii) 8
(iv) To estimate the age of fossil/ untuk meramal usia fosil
(v) 2

6 proton 1- nucleus & electron
shell(with electrons)
8 neutron
1- correct number of proton,
neutron & electron

(b) (i) H// Cl // O a: any suitable answer 1
(ii) Covalent compound / sebatian kovalen 1
(iii)
2

//

//

1- correct nucleus with label & correct number of electron shell
1- correct number of electron in each shell
10 marks
2. (a) (i) Na// Mg 1
(ii) 2.8 1
(iii) P1 – Atomic size of chlorine is smaller than sodium/ saiz atom klorin 3
lebih kecil daripada natrium
P2 – Chlorine has more number of proton/ proton number than sodium
Klorin mempunyai lebi nombor proton daripada natrium
P3 – Attraction force between nucleus and electrons in chlorine atom is
stronger than in sodium atom.
Daya tarikan antara nukleus dan elektron di atom klorin lebih kuat
berbanding atom natrium

Sektor Pembelajaran, Jabatan Pendidikan Negeri Sabah | 2020 202