Take the L an Ricky rolled
Answer: Elements in the same family generally have similar properties because they contain the same number of the electrons, for instance.
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Zinc chloride and aluminum
The name of the compound PbS2.4H2O would be hydrate of Lead(IV) sulfide. <span>The IV is to show that the lead in the </span>compound<span> has an oxidation state of +4. Lead also has an oxidation state of +2. Hope this answers the question. Have a nice day.</span>
Answer: Sr
Explanation: Strontium electron configuration is [Kr] 5s2. It belongs to group 2 and period 5 of the periodic table.