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Mandarinka [93]
2 years ago
5

Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d11 4p4?

Chemistry
1 answer:
pickupchik [31]2 years ago
4 0
<span>Selenium (se) 
........
.....</span>
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What is the complete ionic equation for H2SO4(aq) + Cal2(aq) -&gt; CaSO4(s) + 2HI(aq)?
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6 0
3 years ago
Read 2 more answers
Explain why the C―Ha bond is much more acidic than the C―Hb bond in pentan-2-one. Select the single best answer. 253 Ha is less
mafiozo [28]

Answer:

Ha is more acidic than Hb because loss of Ha forms a resonance-stabilized conjugate base.

Explanation:

The carbon atom that is next to the carbonyl group in pentan-2-one is known as the alpha carbon atom, this carbon atom bears the Ha, the alpha hydrogen atoms.

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3 0
3 years ago
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