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en.wikipedia.org/wiki/Mass_number

The mass number (symbol A), also called nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It determines the atomic mass of atoms. Because protons and neutrons both are baryons, the mass number A is ... Thus the atomic number increases by 1 (Z: 67) and the mass number ...

www.quora.com/What-is-atomic-number-for-6-protons-7-neutrons-and-6-electrons

The atomic number would be 6, as that is always equal to the number of protons. The atomic ... What element has 7 protons, 6 neutrons, and 6 electrons? ... In an atom of chromium-50, how many electrons, protons and neutrons are there?

www.quora.com/What-element-has-6-protons-6-neutrons-and-6-electrons

Most elements have isotopes, which have varying numbers of neutrons in their ... As in all carbon atoms, it has 6 protons, but this isotope has 8 neutrons.

chemed.chem.purdue.edu/genchem/topicreview/bp/ch6/index.php

The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. ... 13C: 6 electrons, 6 protons, and 7 neutrons. 14C: 6 ...

www.ck12.org/book/CK-12-Physical-Science-Concepts-For-Middle-School/section/2.37

That's because they have the same numbers of protons and electrons. ... Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13).

socratic.org/questions/when-an-atom-has-an-atomic-number-of-6-and-a-mass-number-is-14-how-many-electron

Nov 19, 2015 ... The most common isotope of carbon is carbon-12, which has 6 protons, 6 neutrons, and 6 electrons. Its mass number is 12 (6 protons + 6 ...

dlc.dcccd.edu/biology1-2/atoms-and-elements

All atoms have at least one proton in their core, and the number of protons determines ... In addition to protons and neutrons, all atoms have electrons, negatively ... atoms have 6 neutrons, some carbon atoms are found with 7 neutrons and ...

courses.lumenlearning.com/boundless-chemistry/chapter/the-structure-of-the-atom

Atoms are made up of particles called protons, neutrons, and electrons, which .... For example, carbon's atomic number (Z) is 6 because it has 6 protons. ... of protons is equal to the number of electrons in an atom), and four neutrons (7 – 3 = 4).

chem.libretexts.org/Textbook_Maps/Introductory_Chemistry_Textbook_Maps/Map%3A_Introductory_Chemistry_(Tro)/04%3A_Atoms_and_Elements/4.8%3A_Isotopes_-_When_the_Number_of_Neutrons_Varies

Sep 15, 2017 ... Determine the number of protons, electrons, and neutrons of an ... Carbon atoms with 7 neutrons have atomic mass of 13 (6 protons + 7 ...