The alkali metals are first column, alkali earth 2nd, halogens 2nd to last, and noble gases last. Hope it helps!
Answer:
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Our solar system will always be part of the Milky Way.
Answer: Isoelectronic means having the same numbers of electrons or the same electronic structure.
Explanation:
A strong acid like HCl donates its proton so readily that there is essentially no tendency for the conjugate base Cl– to reaccept a proton. Consequently, Cl– is a very weak base.