Atomic number Atomic parts Z Commentary

Antonius van den Broek chemistry

Atomic number

• Ernest Rutherford realized
• the nucleus of an atom
• has a positive charge
• to be measured in units
• of the charge of an electron;
• however, he guessed
• it would be equal
• to half the atomic weight,
• which Antonius van den Broek
• quickly corrected, claiming
• the charge should be
• exactly equal to its position
• in the periodic table.
• *
• An element’s position
• in the periodic table
• is based on the number
• of protons in its nucleus.
• The number of neutrons
• is not always equal
• to the number of protons;
• many elements have
• multiple isotopes, each
• with a different number
• of neutrons but this
• was not yet understood.

Atomic parts

• Nucleus
• containing protons and neutrons
• Electrons
• in atomic orbitals
• Electromagnetic force
• between protons and electrons
• Nuclear force
• between protons and neutrons
• Magnetic force
• is related to angular momentums
• of its nucleus and electrons
• and the spin of its electrons.

Z

• Z for zahl
• in German, “number”
• is shorthand for “atomic number,”
• also for impedance,
• the third axis,
• the end of a series,
• Zoro,
• and, repeated, sleep.