Hydrogen selenide has two hydrogen atoms attached to a selenium atom in a bent configuration. This forms an H-Se-H with a bond angle of 91 degrees.
K2Se is potassium selenide or more precisely dipotassium selenide. As for KSe that probably doesn't exist, if it did it would be monopotassium selenide
Covalent
Hydrogen Selenide and it is extremely toxic when inhaled.
Water has a higher boiling point than hydrogen selenide, because the strong hydrogen bonding of water gives it a higher "effective" molecular weight than hydrogen selenide, the unit that must be vaporized on boiling consisting on average of several water molecules rather than only one. The selenide, in contrast, forms only weak hydrogen bonds; therefore, its average "effective" molecular weight in essentially that of a single molecule.
Hydrogen selenide is a polar compound.
Hydrogen selenide has two hydrogen atoms attached to a selenium atom in a bent configuration. This forms an H-Se-H with a bond angle of 91 degrees.
Hydrogen, helium, hydrogen sulfide, hydrogen selenide, hydrogen telluride, hydrogen fluoride, hydrogen chloride, hydrogen bromide, hydrogen iodide.
Hydrogen selenide (H2Se) has two bonds.
K2Se is potassium selenide or more precisely dipotassium selenide. As for KSe that probably doesn't exist, if it did it would be monopotassium selenide
Covalent
Hydrogen selenide is SeH2.
Hydrogen selenide, with formula H2Se, is formed from reacting hydrogen and selenium.
Krypton and selenide ion are isoelectronic with 36 electrons each
Gas
Hydrogen Selenide and it is extremely toxic when inhaled.
Water has a higher boiling point than hydrogen selenide, because the strong hydrogen bonding of water gives it a higher "effective" molecular weight than hydrogen selenide, the unit that must be vaporized on boiling consisting on average of several water molecules rather than only one. The selenide, in contrast, forms only weak hydrogen bonds; therefore, its average "effective" molecular weight in essentially that of a single molecule.