1 nguyên tử A có tổng số hạt là 34. Trông đó số hạt mang điện nhiều hơn số hạt ko mang điện là 10 Hãy xác định số lạoi của từng loại hạt? Vẽ sơ đồ nguyên tử đó? P\S: BƯỚC VẼ SƠ ĐỒ CÓ HOẶC KHÔNG CÓ CŨNG ĐƯỢC NHÉ, KHUYẾN KHÍCH LÀ CÓ NHÉ.

2 câu trả lời

Đáp án:

 \(p=e=11;n=12\)

Giải thích các bước giải:

 \(A\) có tổng số hạt là 34.

\( \to p+e+n=34\)

Vì trong nguyên tử \(p=e \to 2p+n=34\)

Hạt mang điện là \(p;e\); không mang điện là \(n\)

\( \to p+e-n=2p-n=10\)

Giải được: \(p=e=11;n=12\)

$\text{Gọi số hạt p,n,e lần lượt là P,N,E}$

$\text{Ta có : P=E}$

$\text{Theo bài ra ta có :}$

$\text{P+N+E=2P+N=34  (1)}$

$\text{P+E-N=2P-N=10     (2)}$

$\text{Từ (1) và (2) ta suy ra :}$

$\text{P=11 ; N=12}$

$\text{⇒E=11}$

$\text{}$

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