alvin (alvinulwan12)

Race #2

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Official speed 57.13 wpm (37.39 seconds elapsed during race)
Race Start April 4, 2016 11:05:02am UTC
Race Finish April 4, 2016 11:05:40am UTC
Outcome Win (1 of 3)
Accuracy 94.0%
Points 0.00
Text #1240104 (Length: 178 characters)

Kimia dari suatu unsur ditentukan oleh cara di mana elektron disusun dalam atom. Pengaturan demikian merupakan dasar dari klasifikasi periodik modern unsur-unsur: Tabel Periodik.