There are 4 valence electrons in an atom of carbon. Carbon is in group 4A of the periodic table. There are 6 electrons in a carbon atom but only 4 of them are valence. carbon can never form more than 4 bonds and is unhappy with less than 4.
<span>Interstitial diffusion occurs more rapidly in metal alloys because these atoms are smaller, and therefore they are more able to move and vibrate as compared to atoms that are larger and less able to migrate.</span>
A carrier is a child who carries the genes of from parents but the gene doesn't show itself because of being masked by the dominant gene.
The answer is A i hope thats helpful
