What are the limitations of J.J. Thomson's model of the atom?
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<h2>Answer: c
. Alkaline earth metals (Group 2)</h2><h3>Explanation:</h3>
Group 2 metals have 2 electrons in their outer shell. These two electrons are usually found in the s orbital, hence the s².
Alkali Metals (Group 1) elements experience an increase in the vigour of their reaction in water as they go down the group (as the atomic number increase). As such the most reactive Alkali Metal would be FRANCIUM, which is at the base of Group One.
Quite frankly, you do not want Francium to react with water- that's a huge explosion on your hand.
Quite frankly, you do not want Francium to react with water- that's a huge explosion on your hand.