what is an element]
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- A chemical element or element is a chemical substance consisting of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, Z).
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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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Questions and Answers How many elements are there? An element is a substance that is made entirely from one type of atom. If you had very, very good eyes and could look at the atoms in a sample of hydrogen, you would notice that most of the hydrogen atoms would have no neutrons, some of them would have one neutron and a few of them would have two neutrons.
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Elements in the Earthâs Crust The Periodic Table of the Elements. An element (also called a chemical element) is a substance made up entirely of atoms having the same atomic number; that is, all of the atoms have the same number of protons.
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Element noun, plural: elements. (physics, chemistry) A substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with identical number of protons. (general). (1) A fundamental component of a composite entity (such as a vessel element that makes up the vessels in angiosperms).physics, chemistry) A substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with identical number of protons. (general). (1) A fundamental component of a composite entity (such as a vessel element that makes up the vessels in angiosperms).
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Chemistry A chemical element is a pure substance which is composed of a single type of atom, characterized by its particular number of protons in the nuclei of its atoms, known as the atomic number and represented by the symbol Z. The mass number is the sum of the number of protons and neutrons in a nucleus. Although all the nuclei of all atoms belonging to one element will have the same atomic number, they may not necessarily have the same mass number; atoms of an element which have different mass numbers are known as isotopes.
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Elements An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world. Examples of elements include iron, oxygen, hydrogen, gold, and helium. Atomic Number An important number in an element is the atomic number. This is the number of protons in each atom. Each element has a unique atomic.
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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.
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- Atoms and Elements. Ordinary matter is made up of protons, neutrons, and electrons and is composed of atoms. An atom consists of a tiny nucleus made up of protons and neutrons, on the order of 20,000 times smaller than the size of the atom. The outer part of the atom consists of a number of electrons equal to the number of protons, making the normal atom electrically neutral. A chemical element consists of those atoms with a specific number of protons in the nucleus; this number is called the atomic number. The atoms of an element may differ in the number of neutrons; atoms with different neutron numbers are said to be different isotopes of the element.
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- If you do nothing the symptoms of your plantar fasciitis may go away but in most cases the heel pain will persist. With our Plantar Fasciitis Kit you can expect pain reduction after a few days. The amount of heel pain relief will vary with each person depending on their activity level and commitment.
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- the word chemistry is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. Familiar exam … ples of elements include carbon, oxygen, aluminum, iron, copper, gold, mercury, and lead. hope that was helpful!
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CONTENTS Element Definition: A chemical element is a substance that cannot be broken down by chemical means.Elements are defined by the number of protons they possess. Examples of Elements: copper, cesium, iron, neon. By Anne Marie Helmenstine, Ph.D.lement Definition: A chemical element is a substance that cannot be broken down by chemical means.
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element (ěl'ə-mənt) 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.
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element Noun. 1. atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element. substance-the real physical matter of which a person or thing consists; DNA is the substance of our genes.
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- 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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- 1 An element is any amount of one particular kind of atom. 2  A compound is a combination of two or more different elements. 3  A mixture is a substance made by combining two or more compounds without each substance chemically bonding.lements are the things you see on the periodic table: an element is a substance made up of only one type of atom. A compound is the result of two or more elements that have b … een chemically bonded. For example, if you chemically bond aluminum and iodine, you get aluminum iodide.
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- 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 an example of an element is the fire that cooks the food on a gas range stove an example of an element is a neighborhood living in your element
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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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element 1. 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. 2. 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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CONTENTS An element is a type of matter composed of atoms that all have exactly the same positive charge on their nuclei. In other words, all atoms of an element have the same atomic number. Vocabulary. allotrope atomic number atomic weight atoms Dalton's atomic theory isotope mixture nucleus substance.
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Elements and Atoms: The Building Blocks of Matter An element is a substance made from only one type of atom. Remember this definition as you might need it in the exam! For example Carbon is made entirely from carbon atoms. Sodium is made entirely from sodium atoms. Unlike a compound, an element cannot be broken down (chemically) into a more simple substance. The periodic table shows all the elements. Atoms of the same element have the same number of protons and therefore have the same atomic number.
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Contents: Compound vs Element 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. compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Distinguishing Feature. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.
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- 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.
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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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- Science >> Chemistry for Kids. An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world. Examples of elements include iron, oxygen, hydrogen, gold, and helium. Atomic Number.
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- A chemical element or element is a chemical substance consisting of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, Z).n chemistry, a pure element means a substance whose atoms all (or in practice almost all) have the same atomic number, or number of protons. Nuclear scientists, however, define a pure element as one that consists of only one stable isotope.