element in chemistry definition
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Definition of Element An element is a substance consisting of atoms which all have the same number of protons-i.e. the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical methods. Elements can only be changed into other elements using nuclear methods. Although an element's atoms must all have the same number of protons, they can have different numbers of neutrons and hence different masses.
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Review of Elements, Compounds, and Mixtures Elements. Any substance that contains only one kind of an atom is known as an element. Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P 4) or sulfur (S 8) cannot be broken down into simpler substances by these reactions. Example: Water decomposes into a mixture of hydrogen and oxygen when an electric current is passed through the liquid.
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oxide chemical element element,in chemistry, a substance that cannot be decomposed into simpler substances by chemical means. A substance such as a compound can be decomposed into its constituent elements by means of a chemical reaction, but no further simplification can be achieved...... Click the link for more information.
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element 2. in chemistry, a simple substance that cannot be decomposed by ordinary chemical means; elements are the basic components of which all matter is composed. Chemical elements are made up of atoms, each of which consists of a nucleus with a cloud of negatively charged electrons revolving around it.
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- atom. 1  smallest part of an element that has all the properties of an element, (physics and chemistry) the smallest component of an element having the chemical properties of the element. 2  combining of atoms of elements to form new substances. 3  electron in the outermost energy level of an atom.
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element • ELEMENT (noun) The noun ELEMENT has 7 senses: 1. an abstract part of something. 2. any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter.
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- A substance that cannot be broken down into simpler substances by chemical means. An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that element. Today 115 elements are known, of which 92 are known to occur in nature, while the remainder have only been made with particle accelerators.
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Definition of Element 3) A substance that cannot be decomposed; each chemical element is characterized by the number of protons in the nucleus. See the periodic table and the introduction for elements.
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Definition of 'element' Element definition: The different elements of something are the different parts it contains. | Meaning, pronunciation, translations and examples
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element A substance that cannot be reduced to simpler substances by normal chemical means and that is composed of atoms having an identical number of protons in each nucleus. A fundamental, essential, or irreducible constituent of a composite entity.
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Contents: Compound vs Element Diffen › Science › Chemistry. Elements and compounds are pure chemical substances found in nature. The difference between an element and a compound is that an element is a substance made of same type of atoms, whereas a compound is made of different elements in definite proportions. Examples of elements include iron, copper, hydrogen and oxygen.
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- LINK / CITE ADD TO WORD LIST. noun. The element hydrogen on the periodic table. The element hydrogen on the periodic table. The definition of hydrogen is a gaseous element that has no color or odor and is flammable. An atom of hydrogen is the smallest of all elements that exist. 2  Hydrogen is the most plentiful element in the universe. 3  An atom of hydrogen is made up of two subatomic particles, one electron and one proton.
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element In chemistry, any material (such as carbon, hydrogen, iron, or oxygen) that cannot be broken down into more fundamental substances. Each chemical element has a specific type of atom, and chemical compounds are created when atoms of different elements are bound together into molecules.
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- an element is a substance consisting of atoms which all have the same number of protons i e the same atomic number elements are chemically the simplest substances and hence cannot be broken down using chemical methods elements can only be changed into other elements using nuclear methods
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Atom An atom is the basic unit that makes up all matter. There are many different types of atoms, each with its own name, mass and size. These different atoms are called chemical elements. The chemical elements are organized on the periodic table. Examples of elements are hydrogen and gold. Atoms are very small, but the exact size changes depending on the element. Atoms range from 0.1 to 0.5 nanometers in width. One nanometer is about 100,000 times smaller than the width of a human hair. This makes a
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element A substance composed of atoms of only one kind, i.e., of identical atomic (proton) number, which therefore cannot be decomposed into two or more elements, and which can lose its chemical properties only by union with some other element or by a nuclear reaction changing the proton number.
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Chemical element A chemical element is a substance that contains only one type of atom. If a substance contains more than one type of atom, it is a compound. An element can be a solid, liquid or gas. The smallest particle of such an element is an atom. Atoms are made up of protons, neutrons, and electrons.
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Questions and Answers An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron.If you change the number of protons an atom has, you change the type of element it is.or example, the element hydrogen is made from atoms containing a single proton and a single electron. If you change the number of protons an atom has, you change the type of element it is.
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Answers to your technical questions on Solenoid Valves & Pressure Operated Valves A pressure operated valve (most commonly) uses compressed air to open/close a valve. Standard valves operate using air forced in below a piston in the actuator. The air moves the piston due to the force created by the air pushing against it being greater than that of the force of the spring fighting against it.
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Difference Between Elements and Compounds an element is a chemical substance which consists of only single type of atoms hence they are pure for example the smallest element is the hydrogen and silver gold platinum are some of the commonly known precious elements each element has an atomic mass atomic number symbol electronic configuration etc
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- Fire is an element. Fire is an element. The definition of an element is one of the substances that constitute all physical matter-wind, air, fire or water, or a natural environment. 1  An example of an element is the fire that cooks the food on a gas range stove.
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- element. 1  a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis: Bricks and mortar are elements of every masonry wall. 2  Chemistry. one of a class of substances that cannot be separated into simpler substances by chemical means.
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atom 1 (in chemistry and physics) the smallest division of an element that exhibits all the properties and characteristics of the element. It comprises neutrons, electrons, and protons. The number of protons in the nucleus of every atom of any given element is the same and is called its atomic number. 2.
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Definition of Element Definition of Element What is an Element? An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's atoms have the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions. Elements can only be changed into other elements using nuclear methods.
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Difference Between Elements and Compounds There are about 118 elements given in the periodic table according to their atomic number. An element is a chemical substance which consists of only a single type of atoms, hence they are pure. For example, the smallest element is the hydrogen, and silver, gold, platinum are some of the commonly known precious elements. Each element has an atomic mass, atomic number, symbol, electronic configuration, etc.