An element is a member of a set. In mathematics, an element is anything that can be assigned a value, such as a number or a variable. Anything that can be manipulated mathematically, such as an equation or a function, is also an element.

What are examples of a element? There are many examples of elements in mathematics. Some examples include the natural numbers (1, 2, 3, ...), the set of integers (..., -2, -1, 0, 1, 2, ...), the set of rational numbers (all numbers that can be expressed as a fraction), the set of real numbers (all numbers that can be expressed as a decimal), and the set of complex numbers (all numbers that can be expressed in the form a + bi, where a and b are real numbers and i is the imaginary unit).

##### What are the 30 elements?

There are 118 elements in the periodic table, but only 94 of them occur naturally. The other 24 are man-made. The first 30 elements are: hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, calcium, scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, and copper. Who defined element? The concept of an element in mathematics was first introduced by the Ancient Greek mathematician Euclid in his work Elements. Euclid defined an element as "a value which cannot be further divided". This definition was later refined by other mathematicians, such as Gottfried Leibniz, who defined an element as "a simple substance". What are the types of elements? The types of elements in mathematics include the real numbers, the complex numbers, the rational numbers, and the irrational numbers. What are the 3 main types of elements? The 3 main types of elements are those of the periodic table, those of the transition metals, and those of the rare earth metals.