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VARVARA [1.3K]
2 years ago
5

Which of the following places the elements in the correct order of increasing first ionization energy?

Chemistry
1 answer:
-BARSIC- [3]2 years ago
4 0
Be, Mg, Ca increasing first ionization energy
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As both phosphorous and barium are relatively weaker than iron ,phosphorus breaks easily and barium is also fairly weak. Iron nails are already also not that strong, but their weight and strength are sufficient.  

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