Admin What is the definition of element in biology?
noun. plural: elements. el‧e‧ment, ˈel.ɪ.mənt. (biochemistry) A substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with an identical number of protons.
What is element definition Class 9?
An element is a substance which cannot be spilt up into two or simpler substances by the means of chemical methods of applying heat, light or electric energy. For Example: – Hydrogen is an element which cannot be split into two or more simpler substances.
What distinguishes one element from another element?
Elements are distinguished from one another by their atomic numbers. The atomic numbers are the number of protons in the atomic nuclei of the atoms of the elements. No two elements have the same atomic number. It is the atomic number, and therefore the number of protons in its atomic nuclei, that define an element.
Which best describes an element?
An element is a pure substance. It is the purest and most basic form of any substance on Earth. There are a total of 118 discovered elements, 94 of which naturally occur on Earth. The 24 other elements are synthetic or man-made. Elements are atoms that are made of subatomic particles known as protons, electrons, and neutrons.
What makes one element different from another element?
Normally, the number of electrons is equal to the number of protons, which makes atoms electrically neutral. The number of protons in an atom is the defining feature of an atom. It’s what makes one element different from another. The number of protons in an atom is called its atomic number.
What is the best definition of an element?
Element. (2) A place or condition best suited or most favorable for an individual (e.g. water is the element of fishes). (3) Any of the formerly theorized building blocks of material universe: water, earth, fire and air. Common examples of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen.