Fill in the blanks to determine the number of protons and electrons in an oxygen ion. (consult the periodic table to determine t he number of protons in a neutral oxygen atom.) the o2− ion has _____ protons and _____ electrons. express your answers as integers separated by a comma.
2 answers:
The Oxygen ion (O2-) has 8 protons and 10 electrons
<h2>Further Explanation</h2><h3>An atom </h3>
An atom is defined as the smallest particle of an element that can take part in a chemical reaction. Atoms are made of energy shells and the inner nucleus. It is also made up of subatomic particles, protons and neutrons. <h3>Neutrons </h3>
They are sub-atomic particles in an atom that are found in the nucleus of an atom. The number of protons and neutrons in a nucleus of an atom results to the atomic mass number of an atom. <h3>Protons</h3>
Protons are subatomic particles that are found in the nucleus of an atom. The number of protons differ from one element to another and thus used as the atomic number of an individual element. <h3>Electrons </h3>
They are found orbiting the nucleus on energy shells based on Clouds’ theory. The number of electrons and protons in a neutral atom are equal. Electrons are the only sub-atomic particles that take part in chemical reactions. <h3>Ions </h3>
Ions are formed as a result of gaining or loosing of electrons by a atom to attain a stable configuration based on the octet rule. <h3>Cations </h3>
Cations are type of ions that are formed when an atom looses electrons to form a stable configuration. Cations are positively charged.For example, a neutral sodium atom (Na) looses one electron to form sodium ion (Na+) which is a cation. Which means, a neutral sodium atom has 11 electrons and 11 protons while a sodium ion has 10 electrons and 11 protons. <h3>Anions </h3>
Anions are type of ions that are formed when an atom of an element gains electrons. They are negatively charged. For example, a neutral oxygen atom (O) gains two electrons to form oxygen ion (O2-) which is an anion. Therefore, a neutral oxygen atom has 8 electrons and 8 protons while an oxygen ion has 10 electrons and 8 protons.
Keywords : Atom, sub-atomic particles, electrons, protons, neutrons, ions, anions cations
<h3>Learn more about:</h3>
Level: High school
Subject: Chemistry
Topic: Atomic structure
Sub-topic: Ion formation
The protons in an nucleus of an atom will not change unless a nuclear reaction takes place. The number of protons is equal to the atomic number of the element. For a neutral atom, the number of electrons and protons are equal. When they are unequal, then the atom occurs as an ion. It will has a net charge with it. The ion O²⁻ has a net charge of negative positive 2 because it has 2 more electrons than its protons. Since neutral oxygen has 8 protons, then O²⁻ ion has 8 protons and 10 electrons.
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