
kimia kumpulan 1
Authored by SUZANA Moe
Chemistry
4th Grade
Used 11+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
apakah persamaan unsur-unsur kumpulan satu?
takat lebur dan didih yang sama
ketumpatan yang sama
bilangan elektron valens yang sama
mempunya saiz yang sama
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kumpulan 1 juga dikenali sebagai kumlpulan
halogen
logam alkali
logam alkali bumi
gas adi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Semua logam kumpulan 1 mempunyai sifat kimia yang sama kerana bilangan elektron valens yang sama
Betul
Salah
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pernyataan yang manakah menjelaskan mengapa reaktiviti logam alkali meningkat apabila menuruni Kumpulan 1 di dalam Jadual Perkalaan Unsur?
Bilangan proton meningkat
Keelektronegatifan atom berkurangan
Bilangan petala berisi elektron bertambah
Daya tarikan nukleus terhadap elektron valens semakin lemah
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan kaedah menyimpan suatu unsur.
Antara berikut yang manakah menerangkan mengapa kaedah ini digunakan?
A) Untuk mengelakkan tindak balas dengan cahaya matahari
B) Untuk mengelakkan unsur tersebut bertindak balas dengan oksigen
C) Unsur itu adalah berasid.
D) Unsur itu mudah meruap.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pernyataan manakah salah tentang perubahan fizikal kumpulan satu apabila menuruni kumpulan
saiz atom semakin bertambah
takat lebur dan didih yang rendah tetapi semakin meningkat apabila menuruni kumpulan
ketumpatan yang rendah tetapi semakin meningkat apabila menuruni kumpulan
tidak dapat mengkonduksi haba
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur kumpulan 1 bersifat
alkali
berasid
neutral
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