Answer:
That is a compound. If it was an element it would either just be Na or Cl.
I think the correct answer is decrease in temperature
I feel like that’s the right one
The answer to your question is Gallium, or GA. The trick is to always check if they are along the same vertical column. This indicates that they have the same Valence electrons, which is involved in all the bonding and define the electronegative status of the atom.
The answer is 3.
That is if an atom has 5 electrons in its outer shell, then it has 3 unpaired electrons.
As the outer shell have 1 s orbital too and that is fully filled and not available for bonding so it must have 3 unpaired electrons.
So the number of unpaired electrons in an atom that is having 5 electrons in its outer shell is 3.
Because as u go across groups the more reactive it is due to the ability of electrons to be given or taken away
