Penilaian Harian III Sistem Periodik
1st Grade
•10 Qs
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Penilaian Harian III Sistem Periodik
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Medium
Rara Safira
Used 7+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Bila unsur unsur dikelompokkan berdasarkan kesamaan sifat dan diurutkan massa atomnya, maka di setiap kelompok terdapat 3 unsur dimana massa unsur di tengah merupakan massa rata rata dari massa unsur yang di tepi. Pengelompokan unsur ini dikemukakan oleh ....
Dobereiner
Newlands
Moseley
Mendeleyev
Lothar Meyer
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Triad unsur unsur adalah X, Y, Z. Jika massa atom X dan Z berturut turut adalah 7 dan 39 sma. Maka massa atom Y adalah …
32 sma
46 sma
23 sma
39 sma
50 sma.
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Sistem periodic yang digunakan sekarang disusun berdasarkan kenaikan ...
Massa atom
Electron valensi
Susunan electron
Sifat Unsur
Nomor Atom
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Pernyataan tentang table periodic modern berikut yang benar adalah ...
Golongan B disebut golongan utama
Kolom tegak disebut periode
Memiliki 6 periode
Golongan IIA disebut alkali tanah
Baris mendatar disebut golongan
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Unsur-unsur yang mempunyai kemiripan sifat ditempatkan dalam ....
Periode yang sama
Golongan yang sama
Blok yang sama
Kulit yang sama
Wujud yang sama
6.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Diantara pernyataan berikut yang bukan merupakan sifat keperiodikan unsur adalah...
Dalam satu golongan, semakin besar nomor atom maka semakin besar jari jari atom
Energi ionisasi cenderung meningkat sepanjang periode dari kiri ke kanan
Dalam satu golongan, semakin besar nomor atom maka semakin kecil energi ionisasi
Dalam satu periode, semakin besar nomor atom maka semakin besar jari jari atom
Dalam satu periode, semakin besar nomor atom maka semakin besar afinitas electron
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Berikut ini data energi ionisasi secara acak unsur unsur golongan IA yaitu 3Li, 11Na, 19K, 37Rb, dan 55Cs dalam Jmol–1, yaitu 419, 376, 496, 403, 520.Yang merupakan energi ionisasi Sesium (Cs) adalah ....
376
403
419
496
520
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