Certain elements frequently form ions with a 2+ charge. Where are these elements located on the periodic table?. What are they called and why do they form that kind of ion?.
2006-12-22 12:34:28 · 4 answers · asked by chemistrystudentinneed 1 in Science & Mathematics ➔ Chemistry
The Alkaline Earth Metals, (Be, Mg, Ca, Sr, Ba, Ra) commonly form cations with a 2+ charge. They are in the the group commonly labelled IIA, or just group 2, on most modern periodic tables, the 2nd column from the far left. They form this ion because they have 2 valence electrons in their outer orbital and losing 2 electrons is what it takes to empty this orbital. Some of the transition metals also form 2+ cations.
2006-12-22 13:00:58 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Atoms which have 2 valence electrons will try to lose those two electrons resulting in an atom with filled electron levels. This will produce a stable atom.
The group of elements known as the "alkaline earth" elements will form 2+ ions to become stable. They are in the second column (Be, Mg, Ca, Sr, Ba, Ra)
2006-12-23 04:59:36 · answer #2 · answered by The Old Professor 5 · 0⤊ 0⤋
the 2+ are:
Be, Mg, Ca,Sr, Ba (group 2)
Fe, Cu, Zn, Ni, Co (some of period 4)
2006-12-22 21:08:16 · answer #3 · answered by Papilio paris 5 · 0⤊ 0⤋
1st column (Group I) is the alkali metals. 2nd column (Group II) are alkaline earth metals.
2016-05-23 16:55:39 · answer #4 · answered by Anonymous · 0⤊ 0⤋