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Atoms are made up of three types of subatomic particles: protons, neutrons, and electrons. Protons and neutrons are found in the nucleus, the dense region at the center of an atom. Electrons are found outside the nucleus.
- 3 min
- Khan Academy
Jul 29, 2022 · Describe the locations, charges, and masses of the three main subatomic particles. Determine the number of protons and electrons in an atom. Write and interpret symbols that depict the atomic number, mass number, and charge of an atom or ion. Define the atomic mass unit and average atomic mass.
6 days ago · In the nickel nucleus represented above, the atomic number 28 indicates the nucleus contains 28 protons, and therefore, it must contain 31 neutrons in order to have a mass number of 59. The uranium nucleus has 92 protons as do all uranium nuclei and this particular uranium nucleus has 146 neutrons.
Determine the number of protons and electrons in an atom. Define atomic mass unit (amu).
Protons and Neutrons in Nickel. Nickel is a chemical element with atomic number 28 which means there are 28 protons in its nucleus. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.
An atom's mass number (symbol: "A") is used to determine the total number of protons and neutrons in the nucleus of an atom. I.e., Protons + neutrons = mass number With an atom's mass number, you can figure out the number of neutrons in the nucleus.
- 2 min
- Khan Academy
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Nickel is the 28th element in the periodic table and has a symbol of Ni and atomic number of 28. It has an atomic weight of 58.6934 and a mass number of 58. Nickel has twenty-eight protons and thirty neutrons in its nucleus, and twenty-eight electrons in four shells.
