Atoms are made up of at least one proton, at least one nuetron, and at least one electron. The number of electrons an atom has must be equal to its protons, otherwise, it is called an ion.
The nucleus of an atom represents most of an atom's mass.
Na^+ represents a sodium atom that has lost ONE ELECTRON.
The formula for water is H2O, where "H" represents one atom of hydrogen and "O" represents one atom of oxygen.
No, Cl- is not an atom. It is an ion. Cl- represents a chlorine atom that has gained an electron, giving it a negative charge.
Nothing. The question is wrongly stated. Each single atom is an element.
It represents the number of Protons (p+) that element has in the nucleus of one atom.
The subscript in a chemical formula represents the amount of that atom in that compound's formula.
The atomic symbol in a Lewis structure represents the nucleus of an atom, typically denoted by a letter. It does not include any electrons. The letter serves to identify the element that the atom represents.
Atomic Mass represents the mass of atom. We use mass of protons and neutrons.
positive charge in the atom
The atomic number equals the number of protons in an atom, as well as the number of electrons in a stable, electrically neutral atom, it represents the identity of an element ,the simplest form of matter.
H is the chemical symbol for Hydrogen and represents one hydrogen atom everywhere other than in a chemical equation where it represents one mole of hydrogen atoms.