nhatlam3107 nhatlam3107

15-06-2021
Biology

contestada

a/ Một nguyên tử X có tổng số các loại hạt bằng 18
b/ Một nguyên tử Y có tổng số hạt cơ bản 58 và số khối nhỏ hơn 40. Hãy xác định các nguyên tử trên. Biết số khối A = N+P

Respuesta :

Mimosa2021 Mimosa2021

18-06-2021

Explanation:

a) p+e+n=18

mà p=e=z => 2p +n=18

câu a có thiếu dữ kiện không?

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