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      <title>HÓA HỌC 10 by </title>
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      <description>BÀI 30: SUNFUR</description>
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      <pubDate>2022-04-11 02:04:14 UTC</pubDate>
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         <pubDate>2022-04-11 02:11:45 UTC</pubDate>
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         <title>Nguyễn Thị Vân Anh </title>
         <author>nguyenhuesph49</author>
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         <title>Nguyễn Thị Ngọc</title>
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         <description><![CDATA[<div>PHIẾU HỌC TẬP<br>I – Vị trí, cấu hình electron nguyên tử:&nbsp;<br>- Cấu hình electron: 16S: 1s22s22p63s23p4 hay [Ne]3s23p4&nbsp;<br>- Ô số 16, nhóm VIA, chu kì 3.&nbsp;<br>- Lớp ngoài cùng có 6 e.&nbsp;<br>II – Tính chất vật lí:<br>&nbsp;- Chất rắn, màu vàng.&nbsp;<br>- Có 2 dạng thù hình: S đơn tà và S tà phương.&nbsp;<br>III – Tính chất hóa học: S có số oxi hóa: -2, 0, +4, +6&nbsp;<br>→ sulfur vừa có tính oxi hóa, vừa có tính khử.</div>]]></description>
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