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Terima kasih budew, berkat anda malam mingguku terasa lebih indah dengan kimia :*
Kelimpahan Unsur di Alam
1.O₃
2.SiO₂
3.maag
4.felsfar dan mika
5.karbon
6.fluorsfar dan kriolit
7.Al₂(SO4)₃
8.silika gel
9.argon
10.beryl
Sifat Fisis dan Kimia Unsur Gas Mulia
1.Energi ionisasi
2.Gaya tarik atom – atomnya sangat kecil
3.Sub kulit s maupun p pada kulit paling luar terisi penuh elektron
4.Xe dan Kr
5.Semua gas mulia tidak dapat dibuat senyawanya
6.Jari-jari atomnya terlalu kecil
7.Bertambahnya gaya dispersi antar atom gas mulia
8.Titik cair dan titik didih gas mulia yang rendah
9.Energi ionisasi kripton, xenon dan radon hampir sama dengan energi ionisasi oksigen dan masih lebih rendah dari fluor.
10.Daya tarik inti terhadap elektron kulit luar berkurang
Sifat-sifat Halogen
1.fluorin
2.astatin
3.+7
4.E-C-B-A-D
5.+3
6.bromin
7.2,5
8.bromin
9.klorin
10.AgBr
Sifat-sifat Logam Alkali
1.sukar ditempa
2.Li
3.natrium
4.520
5.litium
6.0,9
7.sesium
8.63 °C
9.+1
10.pengawet makanan kaleng
Sifat-sifat Logam Alkali Tanah
1.10
2.1,31
3.-2
4.berilium
5.Mg(OH)₂
6.kalium
7.berilium
8.20Ca
9.berilium
10.berilium
Sifat-sifat Fisik Unsur Periode ketiga
1.belerang
2.natrium
3.3s² 3p⁶
4.Ar
5.Si
6.Cl
7.B-E-D-A-C
8.+5
9.Si
10.silikon
Sifat-sifat Unsur Transisi periode keempat
1.+5
2.biru
3.orbital d telah penuh terisi elektron
4.kalsium (Ca)
5.elektron tidak berpasangan pada orbital d
6.ikatan koordinasi
7.periode 4 golongan II B
8.seng (Zn)
9.30Zn
10.ungu
Sifat-sifat Kimia Unsur Periode ketiga
1.klor
2.mempunyai bentuk molekul yang stabil
3.mangan
4.kulit atomnya
5.4
6.amfoter
7.Mg(OH)2
8.HClO4
9.3
10.Na
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