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Apparently, it comes from the word "Zhalen" which is the German word for "Number". Apparently this word was chosen by N.Bourbaki, a group of mathematicians aiming to write a thorough unified account of all mathematics.

Source:

http://mathcentral.uregina.ca/QQ/database/QQ.09.01/stephanie3.html

More information on N.Bourbaki group:

http://en.wikipedia.org/wiki/Nicolas_Bourbaki

Q: Why is the symbol for integers the letter Z?

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The stick symbol for Zipcar is a lowercase "z" enclosed in a circle.

The symbol for an element is typically written as [A-Z][a-z][number], where A is the element's atomic number, Z is the element's chemical symbol, and the number represents the sum of protons and neutrons (called mass number). So, for 12 protons, 10 electrons, and 12 neutrons, the symbol would be Mg.

The symbol for atomic number is "Z." Each element is identified by its unique atomic number, which represents the number of protons in the nucleus of an atom.

What is the only letter not appearing on the perodic table as a symbol or part of the symbol

There are two on the Periodic Table of Elements, both transition metals: Zinc, number 30 and Zirconium, number 40.

Related questions

Z is the symbol for integer. It is the initial letter of Zahlen, the German word meaning "number"

The set of integers is represented by Z.

Z.

The symbol for the set of integers is Z from the German word "zahl" = integer.

The symbol for the set of integers is Z. This comes from the German Zahl, which means integer.

The symbol for the set of integers is Z and it comes from the German word Zahlen, meaning numbers.

ℤ is the symbol for the set of all integers, that is {..., -2, -1, 0, 1, 2, ...}.

Because Zahlen is German for "numbers."

The symbol is Z from the German word for integers, zahl.

The symbol is Z, which comes from the German word Zahl, meaning integer

Any symbol can be used to denote a set of integers. The set of all integers is denoted by Z, and the set of natural numbers by N.

Zero