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UTBK-1 POST-TEST

Authored by Rahmat Grafiddin

Science

Professional Development

UTBK-1 POST-TEST
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23 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Tentukan konfigurasi elektron dari atom Kromium (Cr) dengan nomor atom 24.

[Ar]3d54s2

[Ar]3d54s1

[Ar]3d64s1

[Ar]3d34s2

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

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 • 5 pts

Di antara unsur berikut, manakah yang memiliki energi ionisasi pertama tertinggi?

Na

Mg

Al

P

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Konfigurasi elektron ion O2− adalah…

[He]2s22p4

[He]2s22p6

[He]2s22p5

[Ne]

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

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 • 5 pts

Berapa banyak elektron valensi yang dimiliki oleh atom karbon?

2

3

4

5

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Pada spektrum emisi hidrogen, transisi dari n=3 ke n=2 berada pada rentang spektrum apa?

Ultraviolet

Inframerah

Sinar X

Cahaya tampak

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