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2. What is the number of protons in a nucleus of an element?

   socratic.org/questions/what-is-the-number-of-protons-in-a-nucleus-of-an-element

   Learn how the number of protons in the nucleus of an element is its atomic number, which determines its chemical properties and position on the periodic table. See examples, explanations and links to related topics on Socratic.

3. Isotope Notation - Chemistry - Socratic

   socratic.org/chemistry/nuclear-chemistry/isotope-notation

   Learn how to use isotope notation, also known as nuclear notation, to represent the mass number, atomic number, and number of neutrons and protons of an isotope. See examples of isotope notation for carbon-14, titanium-48, and other elements.

4. Atomic Number - Chemistry - Socratic

   socratic.org/chemistry/a-first-introduction-to-matter/atomic-number

   Learn the definition, properties, and applications of atomic number, the number of protons in the nucleus of an atom. Find examples, practice problems, and explanations of how atomic number relates to electron configuration, isotopes, and periodic table.

5. Basic Atomic Structure - Chemistry - Socratic

   socratic.org/chemistry/a-first-introduction-to-matter/basic-atomic-structure

   Learn about the subatomic particles, atomic number, mass number, and isotopes of atoms. Find out how to draw Bohr diagrams, calculate atomic radius, and compare atomic structure with molecular structure.

6. Atomic Nucleus | Definition & Structure - Lesson - Study.com

   study.com/learn/lesson/atomic-nucleus-structure-composition.html

   Learn the definition of the nucleus of an atom and the particles found in it: protons and neutrons. Discover the charge, mass, and identity of the nucleus and how it relates to the element.

7. What is the number protons in the nucleus? - Answers

   www.answers.com/natural-sciences/What_is_the_number_protons_in_the_nucleus

   The number of protons in the nucleus is equal to the atomic number of the element. Each element has a unique number of protons in its nucleus, which determines its chemical properties and identity.

8. How many protons are in the nucleus of an atom of oxygen?

   socratic.org/questions/how-many-protons-are-in-the-nucleus-of-an-atom-of-oxygen

   The atomic number of oxygen is 8, which means it has 8 protons in its nucleus. Since protons are positively charged and electrons are negatively charged, oxygen also has 8 electrons to balance the charge.

9. How is nuclear stability related to the neutron-proton ratio?

   socratic.org/questions/how-is-nuclear-stability-related-to-the-neutron-proton...

   The web page explains how the number of neutrons and protons affects the stability of the nucleus. It shows a graph of the neutron-proton ratio for stable isotopes and explains the role of the strong nuclear force and the electrostatic repulsion.

10. Does number of protons always equal to number of electrons?

    socratic.org/questions/does-number-of-protons-always-equal-to-number-of-electrons

    Learn the difference between a neutral atom and an ion, and how the number of protons and electrons changes in each case. A neutral atom has the same number of protons and electrons, while an ion has more protons or electrons than the other.

11. Why is the number of protons and electrons equal in an atom?

    socratic.org/questions/why-is-the-number-of-protons-and-electrons-equal-in-an-atom

    The web page explains why the number of protons and electrons is equal in an atom only when the atom is neutral in charge. It gives examples of sodium and chlorine atoms and shows how their atomic numbers, protons, neutrons and electrons are related.