the Atomic Mass and atomic number (number of protons)
the number of neutrons is the mass minus the number
Elements are made of one type of atom. Atoms are made of electrons, neutrons and protons
Depends on the element. Check out the "Periodic Table".
No they are made up of Protons, Neutrons and Electrons.
It tells the amount of protons neutrons and electrons are in an atom.
Technetium has protons, neutrons and electrons. It also happens to be radioactive. For more information on it go here: http://en.wikipedia.org/wiki/Technetium
Chlorine itself is an element. It is on the Periodic Table (of the Elements). It is made from protons, electrons and neutrons.
No. Atoms differ in number of protons, neutrons and electrons.
Because it has the atoms in the protons and neutrons
No. It is not the same. the number of valence electrons are same for the elements in the same column (group).
54 protons 79 neutrons 54 electrons
Periodic tables are important in Chemistry classes because they help understand more about protons, electrons, and neutrons of various elements.
Because the masses of protons, neutrons and electrons are not whole numbers.