
Kuis Kestabilan Unsur
Authored by Setya Aprilia
Chemistry
11th Grade
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur yang paling stabil di bawah ini adalah …
4Be
12Mg
11Na
10Ne
9F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur X dengan kofigurasi elektron : 2 8 7 dapat mencapai aturan oktet dengan cara ….
melepas 7 elektron
memasangkan 1 elektron
menerima sepasang elektron
menarik 1 elektron
melepas 1 elektron
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Berdasarkan wacana di atas, manakah di antara pernyataan berikut yang benar! (Jawaban bisa lebih dari 1)
Unsur Na mempunyai no atom 3 sedangkan Cl mempunyai no atom 17
Unsur Na dan Cl terletak pada periode yang sama
Ion Cl- mempunyai konfigurasi elektron 2 8 8
Ikatan yang terbentuk antara unsur Na dan Cl adalah ikatan kovalen
Unsur Na mencapai kestabilan dengan cara melepas 1 elektron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan pernyataan di bawah ini:
a) Titik didih dan titik lelehnya tinggi
b) Padatannya bersifat konduktor
c) Larutannya bersifat isolator
d) Bisa larut dalam air
Manakah dari pernyataan berikut yang benar mengenai sifat senyawa NaCl
a dan b
a dan d
b dan c
b saja
semua benar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui beberapa unsur dengan konfigurasi electron sebagai berikut:
P: 2 8 7
Q: 2 8 8 1
R: 2 8 18 2
S: 2 8 8
T: 2 8 18 4
Diantara unsur di atas, yang paling stabil (paling sukar membentuk ikatan kimia) adalah….
R
S
P
T
Q
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