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- A chemical element is a substance consisting of only one type of atom. In other words, all atoms in an element contain the same number of protons. The identity of a chemical element cannot be changed by any chemical reaction. However, a nuclear reaction can transmute one element into another one.
www.thoughtco.com/what-is-a-chemical-element-604297What Is a Chemical Element? Definition and Examples - ThoughtCo
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Oct 17, 2020 · In chemistry, an element is defined as a pure substance composed of atoms that all have the same number of protons in the atomic nucleus. In other words, all atoms of an element have the same atomic number .
Explore the concept of chemical elements and the definition of an element in science with this guide for KS3 chemistry students aged 11-14 from BBC Bitesize.
- Key points. Everything in the known universe is made up of the elements found on the periodic table. There are over 100 different element A pure substance which is made from only one type of atom.
- Elements. An element is a pure substance that cannot be broken down into any other substances. An element is made from just one type of atom The smallest particle of an element.
- The periodic table. There are 118 chemical elements. They are listed on the periodic table A table which lists all of the chemical elements and arranges them in a way that is useful.
- 1. A solid element. The particles are close together and arranged in a regular way. 2. A liquid element. The particles are close together and arranged in a random way.
Dec 5, 2019 · A chemical element, or an element, is defined as a material which cannot be broken down or changed into another substance using chemical means. Elements may be thought of as the basic chemical building blocks of matter.
- Anne Marie Helmenstine, Ph.D.
Jun 7, 2024 · A chemical element is a substance that cannot be further broken down by any chemical reaction. Each element has a unique number of protons in its atom. For example, a hydrogen atom has 1 proton, while a carbon atom has 6 protons.
- Anne Marie Helmenstine, Ph.D.
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.
We can define an element, as a type of matter that can not be broken down into a simpler substance by chemical means. The only way to break down an element, or change it into a different element, is via a nuclear reaction.
