Pertanyaan tentang Unsur Tanah Jarang
Authored by Sri Maolida Uswatun Hasanah
Chemistry
University
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5 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Identifikasi komponen dan proses apa saja yang terdapat pada limbah elektronik!
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Mengapa unsur tanah jarang dinilai langka? Jelaskan alasannya!
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OFF
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Tuliskan konfigurasi elektron untuk Europium!
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OFF
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Mengapa unsur tanah jarang memiliki sifat luminesens dan sifat magnetik yang khas sehingga banyak digunakan dalam berbagai aplikasi?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Bagaimana menurut anda terhadap aktivitas penambangan unsur tanah jarang di alam? Bagaimana solusi yang tepat untuk mengurangi aktivitas penambangan UTJ?
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OFF
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