when does an atom become a postive ion? when does an atom become a negative ion?
2007-03-29 16:48:59 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
just trying to get points so i can ask more questions
ciao
2007-03-29 16:51:10 · answer #1 · answered by bravobrazil90 1 · 0⤊ 0⤋
An atom becomes a positive ion when it loses its electrons (and a negative ion when it gains electron(s)). Usually it is much easier for atoms in the IA and IIA groups of the periodic table (first two column on the left) to lose electron(s) and the atoms in VIA and VIIA (far right) to gain electron(s).
2007-03-29 17:01:28 · answer #2 · answered by bonwei 2 · 0⤊ 0⤋
When an atom loses an valence electron, it becomes a positive ion, aka a cation, (Ex. H+, Al 3+)
When an atom gains an electron, it becomes a negatively charged ion, which is called a anion (Ex. OH-)
2007-03-29 16:56:22 · answer #3 · answered by dabest311 2 · 0⤊ 0⤋
Becomes a positive ion when it loses electrons, a negative one when it picks up electrons.
2007-03-29 17:15:25 · answer #4 · answered by Fromaggito 2 · 0⤊ 0⤋
Becomes a positive ion when it loses electrons, a negative one when it picks up electrons.
2007-03-29 16:52:57 · answer #5 · answered by TheOnlyBeldin 7 · 1⤊ 0⤋
When it loses an electron it becomes positive. When it gains an electron it becomes negative.
2007-03-29 16:52:19 · answer #6 · answered by Michael da Man 6 · 1⤊ 0⤋
it becomes positive when it losses electrons and negative when it gains them.
2007-03-29 16:52:47 · answer #7 · answered by Frankly 2 · 1⤊ 0⤋