Repetition
An element. The particules are atoms.
The symbol He represents the chemical element Helium.
Only some special diagrams represents isotopes of the same element.
According to John Dalton, all the atoms of a single element will have the same mass. This is the basis for the modern atomic theory.
It is the element symbol O which represents oxygen.
Yes, an element is composed of millions of identical atoms.
an element
Sigificance of the Symbol of an Element :- 1. Symbol represents name of the element. 2. Symbol represents one atom of the element. 3. Symbol also represents one mole of atoms of the element. That is, symbol also represents 6.022 x 1023 atoms of the element. 4. Symbol represents a define mass of the element (equal to Atomic Mass expressed in grams).
Such a substance is always an element.
A chemical symbol represents an element. For example, the chemical symbol H represents the element hydrogen.
The letter (or letters) represents the abbreviation for that element, i.e. it represents the symbol used to represent that element.
The number of electrons in isotopes is identical.
Chemical symbol O represents the element Oxygen. Oxygen is the 8th element in the periodic table.
model.....
Because the existence of isotopes was discovered not all atoms of an element are identical.
atoms are of an element are the same becasue the are all made from identical particles. there is no way to distinguish one electron from another electron. the same is true for neutrons and protons. so by virtue of the fact that its constituents are identical, all atoms of the same element are identical.
Chemical symbol B represents the element Boron. Boron is a p block element.