This is the number of protons.
The valence electrons in the main group or representative elements determine chemical reactivity. However, the number of protons in the atomic nuclei of an element determine the element's identity.
Electrons :) Which particles make the greatest contribution to the chemical properties of and atom? Which particles make the greatest contribution to the chemical properties of and atom?
The electron sub-shells. Most significantly the outer electron sub-shell.
-Size of the atom; the number of electrons in the outermost shell determine the reactivity of the substance.
Feel free to add, everybody!
Valence electrons, which are always in outer s and p orbitals.
The electrons are responsible for an atom's chemical properties.
the number of protons in the nucleus
This particle is the atom.
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.
An Atom. An atom contains protons , neutrons and electrons. The number of protons in an atom gives it its characteristics. e.g. Hydrogen has ONE proton. Carbon has SIX protons. et seq/.
A molecule is the smallest particle of a "compound" being that compounds are made up of more than one atom. The smallest particle of any "chemical element" that retains its properties would be the atom.
If the substance is an element the answer is an atom. If the substance is a compound the answer is a molecule.
Valence electrons
This particle is the atom.
electron
An atom of calcium
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.
The electron field.
It is the calcium atom. It has all the properties of calcium.IT is a metal element.
An Atom. An atom contains protons , neutrons and electrons. The number of protons in an atom gives it its characteristics. e.g. Hydrogen has ONE proton. Carbon has SIX protons. et seq/.
That's an atom of gold. An atom is the smallest representative particle of an element.
This particle is the proton.
A molecule is the smallest particle of a "compound" being that compounds are made up of more than one atom. The smallest particle of any "chemical element" that retains its properties would be the atom.
If the substance is an element the answer is an atom. If the substance is a compound the answer is a molecule.