Um... following where is the following plz add a pic sorry :(
Many elements show very strong similarities to each other.<span>For example, lithium (Li), sodium (Na), and potassium (K) are all soft, very reactive metals.
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Zn → Zn²⁺ + 2e⁻
zinc is oxidized
Answer:
2
Explanation:
The compounds XCl₂ and X₃N₂ shows that the valency of X is 2. If they are ionic compounds then X is a metal. The metals having valency=2 mostly reside in group-2. Exapmle: MgCl₂ and Mg₃N₂.