I don’t know dawg but I’m just answering this so I can complete the steps good luck tho
Answer:
2s2 2p5
Rb < Sr< Sn< Te<I
Explanation:
Electron affinity is the ability of an atom to accept electrons to form negative ions.
Electron affinity is a periodic trend that decreases down the group but increases across the period.
This accounts for the trends observed in the answer. The atom having the electronic configuration, 2s2 2p5 must be a halogen and it exhibits the highest value of electron affinity.
Also, since electron affinity increases across the period, the electron affinities of the elements increases. Therefore, the arrangement of atoms as shown in the answer depends on increasing electron affinity.
the answer to this is D) They are all the same size
852 x 40.0= 4260 x v2
<span>v2= 8 L </span>
<span>b) 852 x 40 = p2 x 69.0 </span>
<span>p2= 494 torr</span>
2.5LX2 M=5 moles
As Molarity X Volume= Total Number of Moles
