2021-2022学年九年级上册化学人教版暑假提前学（8）原子的结构
※题型：单选题※知识点：单选题※试题难度：中等<br>Fe、<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/10/B3B0D2476B90AACB02CD7C035C241ED5.png"><br>、<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/10/BFED730D559960930A68CF53FD473B63.png"><br>三种粒子,下列说法正确的是( )<br>A.它们的化学性质相同 B.它们的核外结构相同<br>C.它们的质子数相同 D.它们都能构成铁单质<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/118c1f1de0fe40a1a9b64dbfce5ec116/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：容易<br>下列结构示意图中,表示阴离子的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/16/B333F32BA4ABC72B858FC91B4B9C5822.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/16/A8CC5CEBA9F8BD6B03224978C51EC193.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/16/EE3C2EAD56A69598130EE1969E22149B.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/16/5EE9921B012C17E056114DCD9DF6A0CB.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/0790d65939804113bcea49db8d5595da/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/5f78e2a6cbb04b579cdd9838605cdcb2/4166DE6F1B8C2236FF517B02ECAC7AC8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列有关粒子的说法中正确的是( )<br>A.分子可分,原子不可分<br>B.原子得到电子后带正电荷<br>C.分子、原子和离子都可以直接构成物质<br>D.原子的原子核都是由质子和中子构成的<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/65ecbc41eaf64f09979a4fe951f3b4a2/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/578934af809b48f0b1c69db226dd65ac/3E040F4BD695970E90CE29E20C8C062B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>某粒子的结构示意图如图所示,对其说法错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/BE98C03A87089B590A2C3F30B68FE562.png"><br>A.核电荷数为12<br>B.该粒子在第三周期<br>C.带12个单位正电荷<br>D.在化学反应中,易失去最外层上的2个电子<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/b26089f40c2f490abd123ba73d4e7ab8/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于原子、分子、离子的说法正确的是( )<br>A.原子核一定由质子和中子构成<br>B.离子中核电荷数一定等于电子数<br>C.原子核的质量约等于电子的质量<br>D.分子是由原子构成的<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/68e9e3f530fa4bb8a3edd72fbcf5821a/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/15f8b234a9b04e67a3c2f4b4bd3543c3/A209CE6F3D6DA543CC6A656770B5ADD6.png"><br><br>
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