F3 SC Bab 8 Keradioaktifan-Atom

F3 SC Bab 8 Keradioaktifan-Atom

11th Grade

21 Qs

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F3 SC Bab 8 Keradioaktifan-Atom

F3 SC Bab 8 Keradioaktifan-Atom

Assessment

Quiz

Science

11th Grade

Practice Problem

Medium

Created by

Didi Tiger

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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Antara berikut, yang manakah membentuk ion positif?

Bilangan proton-10, Bilangan elektron -12

Bilangan proton-15, Bilangan elektron-15

Bilangan proton-23, Bilangan elektron -21

Bilangan proton-19, Bilangan elektron -21

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Rajah di atas menunjukkan struktur atom.


Apakah cas bagi elektron?

Positif

Negatif

Neutral/ tiada cas

Neutron

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bagaimanakah ion positif (kation) terbentuk?

Apabila atom menerima elektron.

Apabila atom mendermakan elektron.

Apabila atom berkongsi elektron.

Apabila atom mendermakan proton.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Sinaran alfa dan gamma masing-masing boleh dihalang oleh sehelai kertas dan sekeping aluminium.


Apakah bahan yang boleh menghalang sinar gama?

Zink

Aluminium

Timah

Plumbum

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nukleon terdiri daripada ..........

Nukleus dan elektron

Neutron dan elektron

Neutron dan proton

Nukleus dan proton

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suatu atom adalah ............... dari segi cas kerana bilangan proton sama dengan bilangan elektron, cas bersih ialah sifar.

positif

neutral

negatif

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Alfa boleh dihentikan oleh ....................

Beberapa mm aluminium

Beberapa cm blok plumbum

Konkrit tebal

Sehelai kertas

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