The reality that water has two hydrogens attached come a solitary oxygen is figured out by the variety of bonds the an oxygen atom can form. Together you might know, all atoms are consisted of of a tiny nucleus surrounding by "cloud" that electrons. While these electrons don"t orbit the nucleus choose the planets orbit the sun, they do tend to spend more time at particular distances from that central spot. These ranges depend ~ above the power of the electron (how "fast" they"re travelling about the nucleus). The many energetic, therefore furthest away, electron are dubbed "valence" electrons and also these are the electrons that interact with various other atoms. An oxygen atom has actually 6 valence electrons. Together it turns out, that doesn"t price much energy to include up to 8 electrons to an atom like oxygen"s valence shell, but including a 9th electron will cost a an excellent of energy (you"ll learn why if you study chemistry/physics in college) therefore the oxygen atom has room for two more electrons prior to they get really hard come add. The hydrogen atoms carry out these electrons when water forms. Adding much more hydrogen on height of H2O would call for those extra electron from hydrogen to occupy much greater energy levels than is frequently available. If H4O were ever before to form, it would certainly spontaneously decompose right into H2 + H2O because the power of an H2 molecule is much reduced than those extra 2 O-H bonds.

Hope this helps! Answer 2:

The proton has a +1 charge, oxygen has -2. For this reason to make neutral molecule H2O you require 2x(+2) +1x(-2)=0

Answer 3:

Atoms are comprised a nucleus, which includes protons and neutrons, as well as electrons, which form shells approximately this nucleus. In every electron shell, there are various numbers that electrons. The very first shell deserve to only fit 2 electrons, and the 2nd shell fits eight. Oxygen, number 8 in the regular table, has actually eight electrons, 2 in the an initial shell and also 6 in the second. Hydrogen only has one electron i beg your pardon is in the first shell.

You are watching: How many electrons does oxygen have in its outer shell

Oxygen and also hydrogen re-publishing one electron as soon as they bond. Through bonding with two hydrogen atoms, oxygen has its 6 external shell electrons + 2 shared electrons native the hydrogen do 8 (and a fill shell makes a happy atom. Each of the hydrogen atoms has actually their 1 electron + 1 shared electron to fill their shell with 2 electrons.

If oxygen bonds with 4 hydrogen atoms, it would have too numerous electrons come fit right into its external shell.

Hope the helps.Answer 4:

Oxygen demands two electrons to fill its outermost electron shell. Hydrogen has one electron come play with. Therefore, one oxygen atom demands two hydrogens come bond come in bespeak to complete its shell.

Answer 5:

Oxygen atom (O) shot to uncover 2 electrons on other atoms the the various other atoms will certainly share with them. Therefore 2 hydrogen atom (H) every share your 1 electron through 1 oxygen atom. That provides 1 molecule the water, H2O.

different kinds of atoms shot to share various numbers of electron with other atoms. Some kinds of atoms have actually electrons to share, and also other kinds of atoms space trying to find more electrons. So as soon as 1 carbon atom (C) renders 1 molecule through hydrogen atoms, it needs 4 hydrogen atoms, and the molecule is CH4, which is methane.

See more: How Are The Arctic And Antarctic Circles Alike ? Dg Week 19 Flashcards

ideal wishes, Answer 6:

In the same method that you have actually two hands and also generally have the right to hold 2 things, oxygen tends to favor bonding through two things due to the fact that of the energy of its electrons. However, depending on the conditions, oxygen have the right to bond to 3 hydrogens, i m sorry happens whereby there are numerous hydrogens (that is, something is strongly acidic).