3+
Key:
4N
=proton
=electron
=neutron
N
What element is th...
![Chemistry](/tpl/images/cats/himiya.png)
Chemistry, 20.11.2020 21:50, wiredq2049
3+
Key:
4N
=proton
=electron
=neutron
N
What element is this
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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