

UNSUR PERIODE KE 3
Interactive Video
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Ranisa Liza
Used 5+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur-unsur berikut merupakan unsur periode ketiga, KECUALI...
Natrium
Magnesium
Kalium
Aluminium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sumber utama aluminium di alam yang paling melimpah adalah...
Kriolit
Tanah liat
Bauksit
Ortoklas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Silikon (Si) dalam tabel periodik unsur periode ketiga diklasifikasikan sebagai...
Logam
Nonlogam
Metaloid
Gas mulia
4.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energi ionisasi Magnesium (Mg) lebih besar daripada Aluminium (Al) karena...
Magnesium memiliki jari-jari atom yang lebih kecil.
Subkulit 3s Magnesium terisi penuh, membuatnya lebih stabil.
Aluminium memiliki lebih banyak proton daripada Magnesium.
Magnesium adalah logam alkali tanah, sedangkan Aluminium adalah logam transisi.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa energi ionisasi fosfor (P) lebih besar daripada sulfur (S)?
Fosfor memiliki jumlah proton yang lebih sedikit.
Konfigurasi elektron fosfor lebih stabil karena subkulit 3p-nya terisi setengah penuh.
Sulfur memiliki jari-jari atom yang lebih besar.
Fosfor adalah logam, sedangkan sulfur adalah nonlogam.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimana kecenderungan keelektronegatifan unsur-unsur periode 3 dari natrium (Na) ke klorin (Cl)?
Meningkat karena jumlah proton bertambah, sehingga gaya tarik inti semakin kuat.
Menurun karena jari-jari atom bertambah, sehingga gaya tarik inti melemah.
Tetap karena jumlah kulit elektron sama.
Tidak dapat ditentukan karena sifatnya bervariasi.
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