The 02 is a solid. I hope thus helped you :)
Here is the answer for the three of them
<span>N20 = 16 e-
</span><span>SeCl2 =20
</span><span>PBr3 = 26
Remember that t</span><span>o find the valence electrons in an atom you need to identify what group the element is in. An element in group 1A has 1 valence electron. If the element is in group 2A, then it has two valence electrons.</span>
Diffusion : a process in which molecules intermingle as a result of their kinetic energy of random motion
The primary cause of diffusion is : 3. Random internal motion of atoms and molecules
hope this helps
Answer:
B
Explanation:
the fluorine has an high tendency to gain electrons from other elements with lower electronegativities
The crust of the Earth is thickest beneath the continents.
