including positive and negative charges.
2006-08-01 20:58:06 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
1A group: H+,Li+,Na+, K+,Rb+,Cs+
2Agroup:Be2+,Mg2+,Ca2+,Sr2+,Ba2+,Ra2+
3Agroup:B3+,Al3+,Ga3+,In3+,Tl3+
4Agroup:C4+,Si4+,Ge4+,Sn4+,Pb4+
and refer chemistry l for all elements ok
2006-08-02 00:09:15 · answer #1 · answered by anjs 2 · 0⤊ 0⤋
Every atom has its electrons in certain spheres.Well,it needs to have 8 electrons in its outer sphere in order to be nuetral(it means that it does not react with the other atoms that it comes into contact with) if it has
2 or more spheres ,or 2 electrons in its outer sphere if i has only 1 sphere.
Valency is the no of electrons an atom has to give or take in order to be nuetral.
If you want to have a list of the valencies you can go to:
http://www.fastload.org/va/Valency.html
2006-08-01 21:35:19 · answer #2 · answered by Ark Angel 2 · 0⤊ 0⤋
al or you mean Al?
Al stands for aluminium and has valence +3. This signifies the posivity of the Aluminium element. As metal, it´s a dense metal and non-nobel metal, has low melting point and soft metal, a silver colored metal but nonshiny.
2006-08-01 22:39:46 · answer #3 · answered by stroby 3 · 0⤊ 0⤋
It indicates how many free electrons it has on its outer layer, electrons which could connect with those of another element and create different types of chemical links between them.
2006-08-01 21:00:25 · answer #4 · answered by adriana 3 · 0⤊ 0⤋
It is not common for every component. Depends on structure of component. for Eg Carbon has four valency
2006-08-01 21:09:41 · answer #5 · answered by Koyyalamudi R 2 · 0⤊ 0⤋
valances are just how many electrons are in the outermost shell. a full shell means it doesn't want to react, and a mostly empty shell ups the chance of a reaction
2006-08-02 05:58:11 · answer #6 · answered by shiara_blade 6 · 0⤊ 0⤋