KhanhDuong071208 KhanhDuong071208

26-10-2021
Chemistry

contestada

Câu 15: Nguyên tử X nặng gấp 2 lần nguyên tử cacbon. Nguyên tử X đó có nguyên tử khối và

kí hiệu hóa học là

A. 24_Mg. B. 16_O C. 56_Fe D. 32_S

Respuesta :

junguyen1202 junguyen1202

04-11-2021

Answer:

A

Explanation:

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