What are the correct units for molar mass? a. b. mol C. g/mol d. g*mol
2 answers:
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Answer:
Explanation:
Group 4A contains a total of 4 electrons for each atom in their valence shell. Filling the orbital diagram, let's say, for carbon, notice that when we start with period 2, we have two elements in the s-block, that is, lithium and beryllium. They correspond to the two s electrons that belong to the valence shell of carbon.
Moving on, we have boron and carbon, the remaining 2 electrons. Now, starting with boron, we're in the p-block.
That said, looking at the second period, the electron configuration for the valence shell of a group 4A element would be:
<span>d)S is not one of them.
Here's an easy way to remember them, attached: </span>
Here's an easy way to remember them, attached: </span>