Which is a binary ionic compound? A.MgCl2 B.C6H12O6 C.CO2 D.PO43- E.CH4
2 answers:
Answer : The correct option is, (A)
Explanation :
Binary ionic compound : It is a type of compound that is made up of the ions of the two different elements in which one element is a metal and another element is a non-metal.
From the given options, option (A) is a binary ionic compound because in this compound Mg is a metal which combine with the a non-metal element chlorine.
While the other options are the covalent compounds that is formed by the combination of non-metal and non-metal elements.
Hence, the is a binary ionic compound.
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<h2>Answer: C) 1s²2s²2p⁶</h2><h3>Explanation:</h3>
A noble gas has 8 electrons between the p and s orbitals of the outer shell. Helium is the exception because it only has two electrons.
<h3> ∴ 1s²2s²2p⁶ is the noble gas (neon)</h3>