tổng số hạt của 1 nguyên tử là 60. Biết số lương mỗi hạt là bằng nhau a)tính p,n,e ; b) tính nguyên tử khối của nguyên tử

2 câu trả lời

Đáp án:a)p=n=e=20

b)40đvC

Giải thích các bước giải:

Ta có tổng số hạt của một nguyên tử là 60

nên p+n+e=60

a)Mà số lượng mỗi hạt bằng nhau

nên p=e=n=60/3=20

Vậy p=n=e=20

b)Nguyên tử khối của nguyên tử là:

p+n=20+20=40(đvC)

Vậy nguyên tử khối của nguyên tử là 40đvC

Ta có tổng số hạt: p+n+e=60

Mà số lượng mỗi hạt bằng nhau nên p=n=e=60/3=20

Nguyên tử khối của nguyên tử =p+n=20+20=40 đvC

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