Bond type in Grignard reagent

I just want to confirm if the $\ce{R-Mg}$ bond is a covalent bond which undergoes heterolytic fission during reactions while the bond between magnesium and halogen atom is ionic. Am I right or wrong?




Yes, you are correct. The carbon-magnesium bond in a Grignard reagent is polar covalent with carbon being the negative end of the dipole, which explains its nucleophilicity and the magnesium-halogen bond is largely ionic.


[![enter image description here](https://i.stack.imgur.com/ORpbx.jpg)](https://i.stack.imgur.com/ORpbx.jpg)


([image source](https://chemistryscore.com/grignard-reagent-mechanism/))


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