2006-09-27 03:06:07 · 6 answers · asked by SecRet 1 in Science & Mathematics ➔ Chemistry
Calcium, because they are both in the same group (group II; alkali earth metals), and they both have a charge of 2+.
Li is in group I (alkali metals) and has a charge of 1+, while Al is in group 3 with a charge of 3+, and F is in groupVII (halogens) with a charge of 1-.
2006-09-27 03:11:54 · answer #1 · answered by chemistry_freako 3 · 0⤊ 0⤋
Use the periodic table of elements (PT). This is its main use.
Elements that are in a single column in the PT will react similarly.
If you look at group 2 in the PT you will find that below magnesium you will find Ca. So magnesium will form compounds similar to Calcium. Both are close to Li so they may share some similarities.
Al and F are definitely far away from magnesium in the table so they will not form similar compounds.
Best answer?
2006-09-30 18:10:14 · answer #2 · answered by Dr. J. 6 · 0⤊ 0⤋
Calcium, which (like magnesium) has a valence in combination of +2. The other elements are all different.
2006-09-27 03:08:03 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Ca. Both are alkaline earth elements (group 2A).
2006-09-30 21:24:38 · answer #4 · answered by yupchagee 7 · 0⤊ 0⤋
Elements that are in the same chemical family.
2006-09-27 04:30:51 · answer #5 · answered by The Cheminator 5 · 0⤊ 0⤋
what are ff. elements?
2006-09-27 03:08:43 · answer #6 · answered by Richard K 2 · 0⤊ 0⤋