yes
2. The atomic number which is 2 stands for how many protons (also electrons, in an uncharged atom) are in the element's atom.
It is a neutron.
Neutron
it is a neutron.
In an uncharged atom, the number of electrons is always equal to the atomic number, in this instance, 9.
A Neutron
17
In the atom the neutron is uncharged.
equals the total number of electrons in the orbital shells.
Elements are not species. Helium is an element. Helium can be a single atom.
One where the number of protons (+) equal the number of electrons (-). one were the proton cancels out the electrons Ex. -5 +5 makes 0 uncharged atoms
The number of protons in an element is its "atomic number" as listed in the Periodic Table. (e.g. helium has 2 protons, lithium has 3)An uncharged atom will also have that number of electrons (otherwise it is an ion). For heavier elements, the number of neutrons may vary (isotopes), but not the number of protons in the atom.