An atom that has eight protons, seven neutrons and nine electrons is an oxygen atom because of the eight protons, seven neutrons makes it a particular isotope of oxygen, and with nine electrons means that it is an ion with a charge of minus one, this is unusual because oxygen tends to form ions with minus two not minus one
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.
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A negative 2 charge means that the oxygen is richer in two electrons. The configuration of oxygen is: 1s22s22p4 and we can conclude that it has 8 electrons. For the atom to be neutral the amount of protons must be the same. Oxygen atom has 8 neutrons. Let's add the two electrons to the eight, so the oxygen will be on negative 2 charge. To summarize, the amount of electrons - 10, protons- 8, neutrons - 8.
It varies depending on the atom but basically there are the same number of neutrons as there are protons. Helium has two protons, two electrons, and two neutrons. The difference between the atomic mass and the atomic number equals the atom's number of neutrons. Consider hydrogen, for example. Standard hydrogen has no neutrons, just one proton. Deuterium is an isotope of hydrogen with one neutron, and tritium (which is unstable) has two neutrons. Carbon 12 has six protons and six neutrons, but carbon 14 (which is unstable) has six protons and eight neutrons. As you move up the periodic table, nuclei tend to have more neutrons than protons. 92 U 238, for example, has 146 neutrons.
Oxigen has 8 protons; natural isotopes have 8, 9 an 10 neutrons.
The atomic mass of the element with eight protons and nine neutrons is 17 atomic mass units. This is calculated by adding the number of protons and neutrons together, as electrons contribute negligible mass to the overall atomic mass.
Oxygen-16 has 8 electrons and 8 neutrons.
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.
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Neon
The Atomic Mass is 17
It has eight protons, about eight neutrons, and about eight electrons. It looks like all other atoms do (Cloud model), but with those characteristics.
When we consider charged particles, we are only concerned with protons and electrons. Neutrons have no charge, so they don't contribute to a positive or negative charge. Protons have a positive charge and electrons have a negative charge. They are both equally positive and negative, that is to say one proton cancels out the charge of one electron. So as long as there are equal numbers of protons and electrons, the particle will be neutral. If there are six protons, then there needs to be six electrons in order to be neutral.
A negative 2 charge means that the oxygen is richer in two electrons. The configuration of oxygen is: 1s22s22p4 and we can conclude that it has 8 electrons. For the atom to be neutral the amount of protons must be the same. Oxygen atom has 8 neutrons. Let's add the two electrons to the eight, so the oxygen will be on negative 2 charge. To summarize, the amount of electrons - 10, protons- 8, neutrons - 8.
It varies depending on the atom but basically there are the same number of neutrons as there are protons. Helium has two protons, two electrons, and two neutrons. The difference between the atomic mass and the atomic number equals the atom's number of neutrons. Consider hydrogen, for example. Standard hydrogen has no neutrons, just one proton. Deuterium is an isotope of hydrogen with one neutron, and tritium (which is unstable) has two neutrons. Carbon 12 has six protons and six neutrons, but carbon 14 (which is unstable) has six protons and eight neutrons. As you move up the periodic table, nuclei tend to have more neutrons than protons. 92 U 238, for example, has 146 neutrons.
Oxigen has 8 protons; natural isotopes have 8, 9 an 10 neutrons.
The element that has 9 protons is fluorine. Its atomic number is 9, indicating that the element has 9 protons in the nuclei of its atoms. If there are 10 electrons, then the fluorine atom has gained an electron and is now a negatively charged anion with a charge of 1-.