Hydrogen "needs" an extra electron to achieve the noble gas configuration of helium. It therefore only "needs" one bond.
It can do this either by shsring electrons in a covalent bond, or with very electropositive metals such as Lithium it forms a bond that is virtually ionic, with most electron density on the hydrogen.
Selenium can form two bonds with hydrogen.
Silicon has 4 bonds with hydrogen
Carbon can make 4 bonds with hydrogen. Nitrogen can make 3 bonds with hydrogen. Oxygen can make 2 bonds with hydrogen.
Selenium can form two bonds with hydrogen.
Arsenic typically forms three covalent bonds with hydrogen.
Silicon has 4 bonds with hydrogen
Hydrogen selenide (H2Se) has two bonds.
Selenium can form two bonds with hydrogen.
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Silicon has 4 bonds with hydrogen
Carbon can make 4 bonds with hydrogen. Nitrogen can make 3 bonds with hydrogen. Oxygen can make 2 bonds with hydrogen.
Selenium can form two bonds with hydrogen.
Just ONE.
Arsenic typically forms three covalent bonds with hydrogen.
Silicon has 4 bonds with hydrogen
There are 7 nitrogen atoms in the base pair A-T.
Oxygen typically forms two bonds with hydrogen to create water (H2O).