
Uji Kompetensi SPU
Authored by Firda Rahmi
Chemistry
10th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Pernyataan berikut yang tepat mengenai sifat- sifat unsur dalam sistem periodik unsur adalah
Semua unsur nonlogam terletak di sebelah kiri pada tabel periodik unsur
Golongan VIIA terdiri atas unsur-unsur yang membentuk molekul diatomik
Semua unsur golongan IA bersifat logam dan sukar bereaksi dengan unsur lain
Golongan VIIIA terdiri atas unsur-unsur berwujud padat pada keadaan bebasnya
Unsur-unsur golongan IVA bersifat logam dan mudah membentuk senyawa basa
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Jari-jari atom unsur dalam satu periode dari kiri ke kanan semakin kecil, karena
jumlah kulit atom tidak berubah
massa atom unsur semakin besar
elektron valensi unsur semakin besar
nomor atom unsur semakin bertambah
elektron-elektron unsur semakin sedikit
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Pernyataan yang tepat mengenai sifat keperiodikan unsur adalah
Semakin kecil jari-jari atom unsur, energi ionisasi unsur semakin besar
Keelektronegatifan unsur dalam satu golongan dari atas ke bawah semakin besar
Semakin besar afinitas elektron suatu unsur, keelektronegatifannya semakin kecil
Jari-jari atom unsur dalam satu golongan dari atas ke bawah semakin kecil
Afinitas elektron unsur dalam satu periode dari kiri ke kanan semakin semakin kecil.
Answer explanation
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Pernyataan yang tepat untuk menggambarkan perbandingan sifat periodik antara unsur Mg dan Al adalah
Mg lebih mudah menarik elektron daripada Al
Jari-jan atom unsur Al lebih besar daripada Mg
Unsur Al lebih mudah melepas elektron daripada Mg
Energi lonisasi Mg lebih kecil daripada energi Ionisasi Al
Mg mempunyai afinitas elektron lebih besar daripada Al
Answer explanation
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Diantara unsur dalam golongan VA berikut mempunyai energi lonisasi paling besar adalah
15 P
7 N
83 Bi
33 As
51 Sb
Answer explanation
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