Any atom with 8 protons is an oxygen atom. Seven neutrons makes it a particular isotope of oxygen, and nine electrons means that it is an ion, with a charge of minus one. This is unusual because oxygen tends to form ions with a charge of minus two, not minus one, but it isn't impossible.
If an atom, let's say oxygen, has an equal amount of protons (8, positive charge) and electrons (8, negative charge), it's completely NORMAL. See, the atomic number IS the number for the protons and electrons (i.e: Oxygen's atomic number is eight, therefore its protons and electrons would also be eight.)
Each electron orbit has a definite amount of energy, and the farther away the electron is from the nucleus, the greater is the energy level. The first level can hold two electrons, the second can hold up to eight, the third can hold up to eight as well, etc... ^.^
The atomic mass is the number of protons, plus the number of neutrons. In this case, 8 + 6 = 14.Furthermore, the six protons (atomic number) tells me that this is carbon; the six electrons tell me that this is a carbon atom, rather than a carbon ion (an ion is when the number of electrons does not equal the number of protons, making the atom electrically non-neutral). The eight neutrons tell me that this is an isotope (in other words, a version) of carbon called carbon-14, which happens to be mildly radioactive; and therefore useful to archaeologists in dating human artifacts.
A krypton atom has 8 valence electrons in the 4s and 4p orbitals.
Unstable atoms, like your alkaline metals(correct me if I'm wrong) gain stability by finishing off their valence electron count, in the outer most shell that orbits around the nucleus. the first electron shell can hold 2 electrons, 2nd can hold eight, etc. So for example, Carbon has 6 electrons. That means that its first shell is filled and the second is half-way filled.Because it needs 8 valence electrons in that second shell to be stable, it will search for 4 bonds with say hydrogen. Hydrogen only needs one bond, so it would have to pair with 4 hydrogens to be satisfied. The more filled the valence shell, or last shell, is filled, the more stable it will be.
Neon
The atomic number of oxygen is 8 because oxygen has 8 protons in its nucleus.The atomic number of a chemical element (also known as its proton number) is always the number of protons found in the nucleus of an atom of that element, and identical to the charge number of the nucleus. It is conventionally represented by the symbol Z.The Atomic Number is a count of how many Protons are present in an atom of an element.The element Oxygen has 8 Protons in its atomic nucleus and therefore has an Atomic Number of 8.Note: in an electrically neutral atom the number of electrons in the electron cloud exactly matches the number of Protons in the nucleus of the atom, therefore electrically neutral oxygen will also have 8 electrons.
Neutrons and protons make up the nucleus; therefore, they cannot revolve around the nucleus. Electrons, on the other hand, are on orbitals surrounding the nucleus. The number of orbitals and the number of electrons per orbital depend on the placement of the element on the periodic table, the atomic mass, the atomic number, etc. A maximum of eight electrons can be on one orbital.
An atom is the basic unit of matter consisting of a nucleus (protons and neutrons) surrounded by electrons. Two examples of atoms are hydrogen, which has one proton and one electron, and oxygen, which has eight protons, eight neutrons, and eight electrons.
Oxygen-16 has 8 electrons and 8 neutrons.
In an Oxygen Atom there are two rings on which the Electrons orbit around the Nucleus, there is the inner ring and the outer ring. The inner ring closest to the Nucleus contains two Electrons and on the outer ring there are six Electrons making a total of eight Electrons, which is equal to the amount of Neutrons and Protons in the Nucleus (8 Neutrons, 8 Protons). This should answer the Question.
A particle diagram for a carbon-oxygen molecule would show two separate atoms, one representing carbon and the other representing oxygen. The carbon atom would have six protons and six neutrons in its nucleus, with six electrons orbiting around it. The oxygen atom would have eight protons and eight neutrons in its nucleus, with eight electrons orbiting around it.
The atomic number organizes the elements and also tells you how many protons there are in an element. So, oxygen would have 8 protons.The atomic number of oxygen 8 indicates that there are eight protons.
Since the 8 protons contribute a net charge of +8 and the net ion is -2, then: +8p + -xe- = -2 x = 10 Therefore there are 10 electrons, forming a O-2 ion.
Oxygen atoms are neutral, and so their net charge is zero. This is because its nucleus has the same number of eight positively charged protons as there are (also) eight electrons in the shells around it.
2 electrons are held closest to the nucleus, after that the maximum per shell is eight.
You put the number of protons and neutrons in the middle of the first circle (nucleus). The number of protons and electrons is the Atomic number. Round the atomic mass and subtract it by the number of protons and you have your neutrons. Draw another circle (shell) around the first one. You can only put up to two electrons in the first one. The next two circles you draw can hold up to 8. The last shell can hold 18. EG: Neon There are ten protons, neutrons and electrons. Draw the nucleus first, then write the number of protons and neutrons inside. Draw a shell around the nucleus and place two electrons side by side. Draw another shell around the first one and draw eight electrons around it.