an element is a substance that cannot be broken down into a simpler form by chemical means
A quark :) An element such as gold, silver, iron, oxygen, hydrogen, helium
An atom A fundamental particle
When a substance cannot be reduced by physical or chemical means to a simpler form, it is an example of a pure substance or an element. Elements are the fundamental building blocks of matter and cannot be broken down into simpler substances through ordinary chemical reactions. Examples include oxygen, gold, and hydrogen.
O2 is a molecule consisting of two oxygen atoms bonded together, making it a diatomic molecule. It is considered an element because it is made up of only one type of atom, which is oxygen. In the context of chemistry, elements are substances that cannot be broken down into simpler substances, and O2 fits this definition as it represents elemental oxygen in its gaseous form.
An element cannot be chemically broken down into simpler substances. Elements are the simplest form of matter and are made up of a specific type of atom. Elements can only be transformed through nuclear reactions, such as radioactive decay or nuclear fusion.
an element is a substance that cannot be broken down into a simpler form by chemical means
They can be broken down by chemical changes, or they form simpler compounds.
Not chemically. The molecules of an element contain only one form of atom, although these can have different numbers of neutrons.The copper can be fissioned into other elements or considered as its separate subatomic particles, but this cannot be done physically to the copper piece.
A quark :) An element such as gold, silver, iron, oxygen, hydrogen, helium
Magnesium is classified as an element because it is a pure substance consisting of only one type of atom, which is magnesium. Elements are the simplest form of matter and cannot be broken down into simpler substances by chemical means.
Heating an element can cause it to change physical form, but it will not break down into simpler substances. Elements are made up of only one type of atom and cannot be decomposed further by heat alone.
An element.
In a word, no.
No. Every substance in the Periodic Table is an element - that is, a substance that cannot be broken down into a simpler form. For example, H2O is made of the elements hydrogen and oxygen. Blood, however, is a homogeneous mixture, not an element, and can be broken down into simpler substances, so it does not belong on the Periodic table.
calyx is not an element because it is in powder form, elements cannot be broken down into any simpler substance by chemical methods.
Mercury is an element with the atomic number 80, which means it consists of only one type of atom: mercury atoms. Elements are the simplest form of matter and cannot be broken down into simpler substances through chemical reactions. Therefore, mercury cannot be decomposed into simpler substances because it is already in its simplest form.