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@qatocdo: 200k follow #xuhuong #viral #foryou #fyp #yumnetwork
Đỏ đâyy!!
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Region: VN
Friday 09 October 2026 12:44:19 GMT
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Thảo Chi lớp 5A2 cô Liễu :
ăn khum
2026-10-09 13:02:50
16
Quỳnh Trâmm🍄 :
điểm danh trước xhh😘
2026-10-09 12:46:45
9
Duonghung~ :
Sớm nhất anh đỏ oiii
2026-10-09 12:49:15
3
ᴠɪ ʙᴏ̂̀ ᴛᴀ́ᴛ :
điểm danh trước khi xhuong
2026-10-09 12:48:29
2
Ly Khanh🫧 :
sớm nhấttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt
2026-10-09 12:47:05
0
aduong471 :
Sớm
2026-10-09 12:45:51
1
SUNNY :
điểm danh trc khi xh
2026-10-09 12:56:49
1
himz.young😔 :
cứ nhắc đến lương là lại cáu the anh Huy nhờ
2026-10-09 13:08:14
1
Nghĩa Đàm :
lương thấp mai huy nghỉ luôn anh đỏ ơi:))
2026-10-09 12:47:12
1
Bảo Nguyên :
ôi sớm thế
2026-10-09 12:46:27
1
𑣲ᴍɪɴᴀ꣑ৎ :
Đánh giá nki ạ
2026-10-09 13:07:58
0
tngocc💥✈️ :
đầu
2026-10-09 12:47:13
1
. :
anh đỏ ơi ra tập 8 đi anhhh😊
2026-10-09 14:09:14
0
@ghe_yeu_cua_sim :
haha
2026-10-09 15:22:07
0
Sunny Dan :
sớm a ơi
2026-10-09 14:22:36
0
✞❅𝕄𝕖𝕖❅✞ :
Sớm
2026-10-09 12:45:49
1
Mazh.young OanhSơn” :
Vui
2026-10-09 15:13:10
0
B :
sớm
2026-10-09 13:53:29
0
only.oanhson.young :
Nhà anh huy giàu mà
2026-10-09 13:49:06
0
Nợ Viettel 60k 🎀 :
oi sớm anh oi
2026-10-09 12:47:23
1
𐙚 ℝ𝕙𝕖𝕒 𝕣𝕚𝕡𝕝𝕖𝕪 𝜗𝜚⋆ :
ô
2026-10-09 15:50:07
0
Q. :
sớm ah ơi
2026-10-09 12:52:48
1
Yến Nhi 🌷🦔 :
chúc ah đỏ lên 2m fl
2026-10-09 13:56:16
0
Đang bận làm người :
tiền cho anh
2026-10-09 14:28:49
0
Bi💢💤 :
sớm
2026-10-09 12:46:11
0
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baca dikit aj.. Bagaimana ilmuwan tau ukuran atom Ukuran atom ditentuin dari efek yg ditimbulkan atom ketika berinteraksi sama cahaya, elektron, ama atom lain, karena atom ukurannya sekitar 10⁻¹⁰ meter, jadi terlalu kecil buat dilihat langsung pake mikroskop cahaya biasa Salah satu cara penting adalah X-ray diffraction, sinar-X ditembakkan ke kristal, atom² di dalam kristal punya susunan yg teratur, sinar-X kemudian mengalami difraksi, dari sudut ama pola difraksinya ilmuwan bisa menghitung jarak antar atom, IUPAC ngejelasin hubungan ini lewat hukum Bragg, nλ = 2d sinθ, dari nilai jarak antar atom itu kita bisa menentukan ukuran atau jari² atomnya Jadi misalnya ada dua atom sejenis yg terikat, jarak antara pusat kedua atom bisa diukur dari struktur kristalnya, lalu untuk kondisi tertentu jari² kovalen bisa dianggap sekitar setengah jarak antara kedua inti atom, makanya ukuran atom yg sering kita lihat di tabel periodik sebenernya bukan ukuran "bola atom" yg punya batas tajam, tapi hasil definisi ama pengukuran tertentu Ada jg metode electron diffraction, elektron ditembakkan ke materi lalu pola hamburannya dianalisis, karena elektron punya sifat gelombang, pola difraksi yg muncul membawa informasi tentang jarak antar atom, IUPAC mencatat teknik difraksi elektron memang dipakai buat menentukan susunan atom pada permukaan material Penelitian Ernest Rutherford punya peran penting dalam memahami struktur atom, tahun 1911 Rutherford bersama Geiger ama Marsden melakukan eksperimen menembakkan partikel alfa ke lempeng emas tipis, sebagian besar partikel lewat lurus, tapi sebagian kecil dibelokkan tajam, dari sini Rutherford menyimpulkan atom sebagian besar ruang kosong ama muatan positif serta hampir seluruh massa terkonsentrasi di inti yg ukurannya jauh lebih kecil dari atom Jadi yg kita sebut ukuran atom sebenernya bergantung pada cara kita mendefinisikannya, ukuran atom netral, radius kovalen, radius van der Waals, ama ukuran distribusi elektronnya bisa beda, bahkan IUPAC mencatat jarak ikatan yg diperoleh dari metode berbeda bisa punya perbedaan kecil karena tiap metode mengukur aspek yg sedikit berbeda Makanya ilmuwan bisa tau ukuran atom bukan karena pernah "melihat" atom secara langsung, tapi karena pola difraksi, hamburan, spektrum, ama interaksi antar partikel memberikan data yg bisa dihitung, dari data itu ukuran atom bisa ditentukan dengan sangat presisi #Fisika #Kimia #Atom #Sains #Edukasi
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