handwritten style hydrogen selenide

hydrogen selenide

formula | SeH_2 Hill formula | H_2Se name | hydrogen selenide alternate names | dihydridoselenium | selane mass fractions | H (hydrogen) 2.49% | Se (selenium) 97.5%

Draw the Lewis structure of hydrogen selenide. Start by drawing the overall structure of the molecule: Count the total valence electrons of the hydrogen (n_H, val = 1) and selenium (n_Se, val = 6) atoms: 2 n_H, val + n_Se, val = 8 Calculate the number of electrons needed to completely fill the valence shells for hydrogen (n_H, full = 2) and selenium (n_Se, full = 8): 2 n_H, full + n_Se, full = 12 Subtracting these two numbers shows that 12 - 8 = 4 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 2 bonds and hence 4 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 8 - 4 = 4 electrons left to draw: Answer: | |

molar mass | 80.987 g/mol

critical temperature | 411 K critical pressure | 8.92 MPa (at STP)

CAS number | 7783-07-5 PubChem CID number | 533 SMILES identifier | [SeH2] InChI identifier | InChI=1S/H2Se/h1H2