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Element (mathematics)


Examples[edit]. Using the sets defined above, namely A = {1, 2, 3, 4 }, B = {1, 2, {3 , 4}} and C = { red, green, blue }: 2 ∈ A; {3,4} ∈ B; {3 ...

Examples of Elements - The Periodic Table


Visit this site for Examples of Elements. Instant information on Examples of Elements. An educational resource and guide for chemistry students detailing ...

Elements, compounds, and mixtures


Example: Water decomposes into a mixture of hydrogen and oxygen when an electric current is passed through the liquid. Hydrogen and oxygen, on the other ...

What are some examples of elements? | Reference.com


Hydrogen and ununoctium are two examples of the more than 100 elements that have either been discovered in nature or synthesized by scientists. All of the ...

Definition of element - Chemistry Dictionary - Chemicool


An element is a substance consisting of atoms which all have the same number ... For example, element 1 is hydrogen, element 2 is helium, element 3 is lithium,  ...

Questions and Answers - What is an element? How many elements ...


How many elements are there? An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms ...

Elements, Mixtures and Compounds : School Chemistry


Elements, Mixtures and Compounds are the names of types of chemicals. ... Example 2 : Element existing in the form of diatomic molecules (i.e. molecules ...

What is element? - Definition from WhatIs.com


The number of electrons in the atom of a specific element can vary. ... For example, the most common isotope of hydrogen has no neutrons, but isotopes exist ...

Use element in a sentence | element sentence examples


How to use element in a sentence. Example sentences with the word element. element example sentences.

What Are Isotopes? - Definition, Types & Examples - Video & Lesson ...


Jul 2, 2015 ... Not all atoms of an element are identical - atoms of the same element can have different number of neutrons. These different versions of the ...

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10 Examples of Elements and Their Symbols - Chemistry - About.com


Chemical elements are known by their names and by their symbols. Here is a list of 10 examples of elements and their symbols.

Element Non Examples - Science Notes and Projects


Aug 11, 2015 ... Are confused by what is and is not an element? It's easy to find element examples. This is a list of element non examples.

Elements and Compounds


For a more advanced list of resources on atoms, elements and compounds. Elements are ... Water, salt, and sugar are examples of compounds. When the ...