mn giải giúp mình nhanh vs

VD:

`m_{Al}`

`=13m_p+13m_e+14m_n`

`=13.1,6726.10^{-27}+14.1,6748.10^{-27}+13.9,1094.10^{-31}`

`\approx 45,202.10^{-27}(kg)`

1.

`p=e=14`

`m_{Si}`

`=14m_p+14m_e+14m_n`

`=14.1,6726.10^{-27}+14.1,6748.10^{-27}+14.9,1094.10^{-31}`

`\approx 46,88.10^{-27}(kg)`

2.

`p=e=19`

`m_{K}`

`=19m_p+19m_e+20m_n`

`=19.1,6726.10^{-27}+20.1,6748.10^{-27}+19.9,1094.10^{-31}`

`\approx 65,29.10^{-27}(kg)`

3.

`p=e=16`

`m_{S}`

`=16m_p+16m_e+16m_n`

`=16.1,6726.10^{-27}+16.1,6748.10^{-27}+16.9,1094.10^{-31}`

`\approx 53,57.10^{-27}(kg)`

4.

`p=e=15`

`m_{P}`

`=15m_p+15m_e+16m_n`

`=15.1,6726.10^{-27}+16.1,6748.10^{-27}+15.9,1094.10^{-31}`

`\approx 51,9.10^{-27}(kg)`

5.

`p=e=26`

`m_{Fe}`

`=26m_p+26m_e+30m_n`

`=26.1,6726.10^{-27}+30.1,6748.10^{-27}+26.9,1094.10^{-31}`

`\approx 93,76.10^{-27}(kg)`

6.

`m_{O}`

`=8m_p+8m_e+8m_n`

`=8.1,6726.10^{-27}+8.1,6748.10^{-27}+8.9,1094.10^{-31}`

`\approx 26,79.10^{-27}(kg)`

7.

`e=p=29`

`m_{Cu}`

`=29m_p+35m_e+29m_n`

`=29.1,6726.10^{-27}+35.1,6748.10^{-27}+29.9,1094.10^{-31}`

`\approx 107,15.10^{-27}(kg)`