Tentukan konfigurasi elektron untuk atom Kromium (Cr) dengan nomor atom 24.
UTBK PRE-TEST

Quiz
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Science
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Professional Development
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Hard
Rahmat Grafiddin
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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
[Ar]3d44s2
[Ar]3d54s1
[Ar]3d64s1
[Ar]3d34s2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektron dengan bilangan kuantum n=3, l=2, ml=+2, s=−1/2 berada pada subkulit mana?
3s
3p
3d
4p
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara unsur berikut, manakah yang memiliki energi ionisasi pertama tertinggi?
Na
Mg
Al
P
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Konfigurasi elektron ion O2− adalah…
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urutan jari-jari atom dari yang terbesar ke terkecil untuk Na, K, dan Cl adalah…
Na > K > Cl
K > Na > Cl
Cl > Na > K
K > Cl > Na
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa banyak elektron valensi yang dimiliki oleh atom karbon?
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada spektrum emisi hidrogen, transisi dari n=3 ke n=2 berada pada rentang spektrum apa?
Ultraviolet
Inframerah
Sinar X
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