Giáo án Dạy Thêm Chuyên đề Hóa 10 - YUMPU Publishing

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https://twitter.com/daykemquynhon plus.google.com/+DạyKèmQuyNhơn <strong>Giáo</strong> <strong>án</strong> <strong>chuyên</strong> <strong>đề</strong> <strong>10</strong> www.facebook.com/daykem.quynhon https://daykemquynhon.blogspot.com http://daykemquynhon.ucoz.com Nơi bồi dưỡng kiến thức To<strong>án</strong> - Lý - <strong>Hóa</strong> cho học sinh cấp 2+3 / Diễn Đàn To<strong>án</strong> - Lý - <strong>Hóa</strong> Quy Nhơn <strong>10</strong>00B Trần Hưng Đạo Tp.Quy Nhơn Tỉnh Bình Định Chuyên <strong>đề</strong> 1: Thành phần nguyên tử – Hạt nhân nguyên tử Lí thuyết cơ bản + Nguyên tử gồm hạt nhân(chứa proton và nơtron) và vỏ(chứa electron) với đặc điểm của mỗi hạt như sau: Hạt Khối lượng Điện tích Proton 1,6726.<strong>10</strong> -27 kg = 1u + 1,602. <strong>10</strong> -19 C = 1+ Nơtron 1,6748.<strong>10</strong> -27 kg = 1u 0 Electron 9,<strong>10</strong>94. <strong>10</strong> -31 kg = 0,00055 u - 1,602. <strong>10</strong> -19 C = 1- + Số hiệu nguyên tử (Z) = số proton (P) = số e (E). + Số khối A = Z + N. + Nguyên tố hoá học là những nguyên tử có cùng Z. + Nguyên tử được kí hiệu là: .( 1u = 1,6605.<strong>10</strong> -27 kg). A X Z Bài tập củng cố lí thuyết Bài tập 1: Nguyên tử Fe có 26 p; 30 n. Tính: a) Số e, số khối của Fe? b) Nguyên tử khối của Fe theo u và theo kg ? c) So s<strong>án</strong>h số khối và nguyên tử khối của Fe rồi rút ra nhận xét? Giải a) P = E = 26 A = 26 + 30 = 56 b) M Fe = 56 (u) = 56. 1,6726.<strong>10</strong> -27 = 9,366.<strong>10</strong> -26 kg. c) M Fe ≈ A Fe Một cách gần đúng ta coi nguyên tử khối chính là số khối. Bài tập 2: Dùng BTH để điền vào ô trống trong bảng sau: Tên Nguyên tố Z Số khối Kí hiệu nt Số proton 23 Na 11 Số electron Số nơtron Kali 39 Niken 31 17 18 127 53 DIỄN ĐÀN TOÁN - LÝ - HÓA <strong>10</strong>00B TRẦN HƯNG ĐẠO TP.QUY NHƠN Giải MỌI YÊU CẦU GỬI VỀ HỘP MAIL DAYKEMQUYNHONBUSINESS@GMAIL.COM HOTLINE : +84905779594 (MOBILE/ZALO) https://daykemquynhonofficial.wordpress.com/blog/ DẠY KÈM QUY NHƠN OFFICIAL ST&GT : Đ/C <strong>10</strong>00B TRẦN HƯNG ĐẠO TP.QUY NHƠN Page 1 Đóng góp PDF bởi GV. Nguyễn Thanh Tú www.facebook.com/daykemquynhonofficial www.facebook.com/boiduonghoahocquynhonofficial

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