Sistem Periodik Unsur dan Sifat Keperiodikan Unsur
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui nomor atom unsur Ca adalah 20. Bagaimanakah konfigurasi elektron ion Ca2+ tersebut ?
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p6 3d2
1s2 2s2 2p6 3s2 3p4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui nomor atom unsur Se adalah 34. Bagaimanakah konfigurasi elektron ion Se2-tersebut?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 atau [Kr]
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui unsur X3+ memiliki 28 elektron , maka dimanakah letak unsur ''X'' pada tabel periodik?
Golongan IIB , periode 2
Golongan IIIA , periode 4
Golongan IVA , periode 3
Golongan IB , periode 4
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui unsur X- memiliki 36 elektron , maka dimanakah letak unsur ''X'' pada tabel periodik?
Golongan VIIA, periode 4
Golongan VIA, periode 4
Golongan IVA, periode 7
Golongan VIIIA, periode 4
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui unsur Mg terletak pada golongan IIA dan periode 2, maka berapakah jumlah elektron yang berpasangan pada ion Mg2+ tersebut?
4
5
6
7
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui unsur ''X'' memiliki 15 elektron. Maka tentukanlah harga keempat bilangan kuantum elektron terakhir ion A3+?
n=3, l=1, m=+1, s= -1/2
n=3, l=1, m=+1, s= +1/2
n=3, l=0, m=0, s= +1/2
n=3, l=0, m=0, s= -1/2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan Keterangan Dibawah!
A : 1s2 2s2 2p6 3s2 3p6 4s2 3d4
B : 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2
C : 1s2 2s2 2p6 3s2 3p2
D : 1s2 2s2 2p6 3s2 3p4
Berdasarkan data pada slide, bagaimanakah urutan unsur-unsur tersebut menurut kenaikan jari-jari atom?
A, B, C, D
D, C, B, A
B, A, D, C
B, A, C, D
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