because the number of protons (which have a positive charge of +1) and the number of electrons (which have a negative charge of -1) are the same.
when number of protons = number of electrons, overall charge = 0
Gained or lost electron(s).
Protons have a single unit of positive electrical charge (+) Electrons have a single unit of negative electrical charge (-) Neutrons have no electrical charge
since an electron is a negatively charged particle and a proton is a positively charged particle the positive and negative charges will cancel each other so the electrical charge on atom is zero.
Every electron has an electrical charge of minus one. If an electron is added to an atom, then the atom also acquires this electrical charge. If an electron is shared by an atom (by means of a covalent bond) then the atom will acquire a partial negative charge, since it doesn't have all of the electron or all of its charge.
This atom become a cation with a +2 electrical charge. All atoms have are neutral because the numbers of protons and electrons are equal. When you subtract any number n of electrons, the new charge is +n, just as a general rule.
If there is an imbalance in the numbers of protons in electrons, then yes, an atom would have electrical charge.
A neutral atom hasn't an electrical charge.
An atom with an electrical charge is called an ion.
-1 charge
Neutron .
There is no net electrical charge on an "unreacted" atom.
Gained or lost electron(s).
The atom is neutral,, there is no net charge
Any ion.
electron
charge
A beryllium atom without electrical charge.