What is an atom (or group of atoms) that has an electric charge other than zero, and is created when an atom or group of atoms) gains or loses electrons?

When an atom gains/loses an electron, the atom becomes charged, and is called an ion. Gaining an electron results in a negative charge, so the atom is an anion....

And $Z$ defines the identity of the element: $Z=1,H;Z=2,He;..........Z=6,C;........Z=37, Ru...........$ You don't have to remember these numbers, because a Periodic Table will be supplied to you in every test of...

Atoms are neutral species. They are conceived to have a positive massive core, around which orbit negatively charged particles of negligible mass. The loss or gain of 1 or more...

$S + 2e^(-) rarr S^(2-)$ Mass and charge are conserved in any chemical reaction. Both are conserved in the reaction shown. Is this a reduction or an oxidation reaction?

For the lithium atom, $Z=3$; there are 3 positive, nuclear charges. There are 3 extra-nuclear electronic charges, i.e. borne by the 3 electrons, in the neutral atom. Lithium generally loses...

The charge of an atom or ion, depends on the excess, the deficiency, or equality of electrons, fundamental particles of negligible mass and of NEGATIVE charge, to protons, fundamental particles...

take Lithium as one example when Lithium become $Li^+1$ it loses an electron. As$ Lithium_3^7$ The atom has two electron in the first shell like Helium and one electron in...

Why...well we begin with the sulfur atom, $Z=16$...now particle size is a function of nuclear charge, $Z$, and SHIELDING by other electrons.. We would expect shielding to win in this...

Metals lose electrons to nonmetals. So if sulfur gains 2 electrons from calcium, the calcium atom will become a calcium ion with a 2+ charge, and the sulfur atom will...

So you start with $H_3C-CH_2CH_3$, you finish $H_3C-CH_2CH_2OH$ or $H_3C-CH(OH)CH_3$, $"n-propanol"$ or $"isopropanol"$. The alkane and the daughter alcohols molecules are neutral species. The alcohols are a little bit more...