If you mean do the exist as single atoms, no. Some can exist as molecules.
Hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine usually exist as the diatomic molecules H2, N2, O2, F2, Cl2, Br2, and I2 respectively. Oxygen can also exist as O3. Phosphorus can exist as P4 and arsenic as As4. Sulfur is usually found as S8. Carbon can exist as C60 and a variety of similar molecules.
The idea is that if you divide it into anything smaller than an atom, it will no longer have the characteristics of that element.
If you mean what kind of element can exist as one atom, the answer is the noble gases in group 18. All elements are composed of one kind of atom, having a unique number of protons, or atomic number.
A molecule of an element is a molecule made up of the same substance that can exist as an atom; for example, oxygen as O2.
Protons and neutrons exist in the nucleus of an atom. The electrons in an atom exist outside the nucleus. All elements have at least one proton; in fact the number of protons, which are positively charged, determines which element it is. Normally, all the elements except hydrogen (H) also contain neutrons, which have no charge (they're neutral, hence their name.)
An atom is an element. Every atom has a certain amount of protons, neutrons and electrons and these are what define which element that atom is.
The smallest unit of life that can exist as a separate entity is a cell.
It varies on the element of the atom.
The idea is that if you divide it into anything smaller than an atom, it will no longer have the characteristics of that element.
A molecule is the simplest complete structural unit of an element or compound that can exist in nature. An atom is the smallest component of any element having all the chemical properties of that specific element.
The smallest unit of an element that is still that element is an atom. Some elements normally exist as molecules, but under some circumstances these can be broken down to individual atoms.
An atom. Anything smaller is an atomic particle from which all elements are made.An atom is the smallest particle of an element that has properties of that element.An atom is the smallest unit of an element that retains the properties of that element.
It is an atom
An atom of that element has all the properties of that element.
An 'atom' is the smallest unit that ANY element can be divided up into. An 'atom' of silver is the smallest piece of silver that there can be, similarly an 'atom' of oxygen is the smallest bit of oxygen that can be. Thus all elements are made of 'atoms'.
The NOBLE gases. They exist as monatoms; that is they do NOT combine with any other element. They are in a group on their own , named the 'NOBLE GASES'. The elements are , Helium(He) , Neon(Ne), Argon(Ar), Krypton(Kr), Xenon(Xe), Radon(Rn).
The smallest unit of Matter that retains the property of an element is the atom.
They are matterA molecule is the simplest complete structural unit of an element or compound that can exist in nature.An atom is the smallest component of any element having all the chemical properties of that specific element.