1 (apex)
1
A hydrogen atom can form only one bond.
Carbon 4Hydrogen 1
An atom can make a number of covalent bonds equal to the number of electrons it needs to fill its outer shell
It'll form either one (if something else is bonding to the oxygen atom) or two (if you're making water, in which case you need two hydrogen atoms).
Hydrogen atoms always form 1 bond. This is the maximum they can bind due to it's structure. For example, oxygen can form 2 bonds under normal circumstances. Hence: H2O, 2 hydrogen atoms with 1 bond and 1 oxygen atom that binds to the two hydrogen atoms. Simple! ONE 1
1.
A hydrogen atom can form only one bond.
Each hydrogen can form one bond with selenium. Each selenium atom can form two bonds, one with each hydrogen (2 hydrogen atoms total).
Carbon 4Hydrogen 1
An atom can make a number of covalent bonds equal to the number of electrons it needs to fill its outer shell
It'll form either one (if something else is bonding to the oxygen atom) or two (if you're making water, in which case you need two hydrogen atoms).
Hydrogen atoms always form 1 bond. This is the maximum they can bind due to it's structure. For example, oxygen can form 2 bonds under normal circumstances. Hence: H2O, 2 hydrogen atoms with 1 bond and 1 oxygen atom that binds to the two hydrogen atoms. Simple! ONE 1
Oxygen doesn't have any hydrogen bonds. A hydrogen bond is when a hydrogen atom is bonded with an electronegative atom, such as oxygen. Oxygen all by itself does not have hydrogen bonded to it. It is simply written as 02.
Covalent bonds are formed when the electrons in atoms' outer shells are shared. An atom can generally only form as many covalent bonds as is has electrons in its outermost shell. Hydrogen only has one electron in its outermost shell, thus hydrogen can only form one covalent bond.
Water molecules form hydrogen bonds with each other. These bonds form between the hydrogen atom of one water molecule and the oxygen atom of another water molecule. Hydrogen bonding is responsible for the unique properties of water, such as its high boiling point, surface tension, and the ability to dissolve many substances.
One.
A hydrogen atom can not form more than one bond, because a hydrogen atom contains only one electron.