
SISTEM PERIODIK UNSUR
Authored by rahmawaty waty
Chemistry
12th Grade
Used 53+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Atom yang mempunyai 8 elektron valensi adalah atom dengan nomor...
8
10
12
16
20
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur-unsur H, Li dan Na yang terletak dalam golongan IA ditentukan berdasarkan . . .
Nomor atom
Jumlah kulit
Nomor massa
Jumlah elektron
Elektron valensi
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur kalium mempunyai nomor atom 19, maka kalium tersebut terletak pada golongan . . . .
IA
IIA
IIIA
IVA
VIIIA
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suatu atom mempunyai nomor massa 80 dan memiliki jumlah neutron 45. Unsur tersebut terletak pada . . . .
Golongan IA periode 6
Golongan IIA periode 6
Golongan VIA periode 1
Golongan VIA periode 2
Golongan VIIA periode 4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pernyataan yang benar tentang jari-jari atom adalah . . .
Dalam satu periode dari kiri ke kanan jari-jari atom semakin besar
Semakin ke bawah gaya tarik menarik antara inti dengan elektron valensi semakin kuat
Dalam satu golongan dari atas ke bawah jari-jari atom semakin besar
Semakin panjang jari-jari atom semakin sukar melepaskan elektron
Jari-jari atom terkecil dimiliki oleh unsur yang terletak di sebelah kiri bawah dalam tabel periodik.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika unsur-unsur disusun berdasarkan kenaikan nomor massa atom, sifat unsur tersebut akan berulang pada unsur kedelapan. Pernyataan ini dikenal dengan hukum oktaf yang dikemukakan oleh . . . .
Dobereiner
Newlands
Mendeleyev
Moseley
Dalton
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Di antara unsur-unsur berikut yang memiliki jari-jari atom terbesar adalah …
a. 6C
b. 9F
c. 5B
d. 10Ne
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