1.

Shown on the graph are the relative values of the first ionisation energies of four elements that have consecutive atomic numbers. One of the elements reacts with magnesium to form an ionic compound with formula MgX2. Which element could be X?

Answer»

Answer:

that have consecutive ATOMIC numbers. ONE of the ELEMENTS reacts with magnesium to FORM an ionic compound with formula MgX2. Which ELEMENT could be X



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