The charge of an atom is the difference between the number of protons and the number of electrons. Normally they balance, so the charge is 0. If there are extra electrons, the atom is an ion, and is considered negative. Conversely, an excess of electrons means positive.
The overall charge on He is 0. It is a noble element.
The atom is neutral; the anion has the charge -1.
Knowing which element it is and its formal charge, subtract the charge from its atomic number.
J.J. Thompson's model of the atom, often refered to as the "plum pudding model" due to it's random distribution of electrons throughout the atom, suggested that negatively charged electrons were scattered about a positively charged jelly-like substance, with the charge from the positive material canceling out the negative charge from the electrons.
When an atom gains a positive charge, it loses one or more electrons. This alters its charge but not its identity as an element. The number of protons, which defines the element, remains the same in a positively charged atom.
An ion is an atom of any element that either has a positive or negative charge.
It depends on what element it is
depends on the element. lol
The overall charge on He is 0. It is a noble element.
The atom is neutral; the anion has the charge -1.
The atom is neutral.
Not quite. You can have an atom of an element, for example an atom of Hydrogen, but not a Hydrogen of an atom. The parts of an atom are protons (positively charged), neutrons (no charge), and electrons (negatively charged).
Not quite. You can have an atom of an element, for example an atom of Hydrogen, but not a Hydrogen of an atom. The parts of an atom are protons (positively charged), neutrons (no charge), and electrons (negatively charged).
Cobalt is an element, there is no oxygen.
An element is a substance that is made out of only one type of atom. So, an element when talking about a substance is made of atoms that are all the same. When talking about an element as an atom of that element (e.g. an aluminium atom) it is composed of a certain amount of protons, neutrons and electrons. Note: One element (Hydrogen) has no neutrons in it's atom.
Ernest Rutherford is the scientist who envisioned the atom as a ball of positive charge with electrons embedded in it. This model became known as the Rutherford model of the atom.
It is an inaccurate model, because there is no way to measure the exact mass, path, and charge of an atom