2006-11-09 02:25:53 · 5 answers · asked by Amber B 1 in Science & Mathematics ➔ Chemistry
Those are the alkaline earth metals, technically referred to as Group 2. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). Radium has two valence electrons and is in Group 2, but is sometimes left off lists of the alkaline earth metals because it is radioactive.
2006-11-09 02:27:09 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
look at the periodic table. if you understand how electrons are configured the answer is now really simple.
there are 2 families that have 2 valence electrons. look for 2 in the s and 2 in the p orbitals.
2006-11-09 12:02:21 · answer #2 · answered by shiara_blade 6 · 0⤊ 0⤋
The alkaline earth metal (Group II) have 2 electron valency.
Whereas there's also many transition elements (d,f block ) whho have two electron valency
for e.g Zinc, Copper etc.
2006-11-09 10:29:11 · answer #3 · answered by Sanskar 1 · 0⤊ 1⤋
Alkaline earths.
Be, Ca, and all the others that are below them in the periodic table.
2006-11-09 11:16:53 · answer #4 · answered by anon 5 · 0⤊ 0⤋
The second column which includes calcium, magnesium...
2006-11-09 10:27:35 · answer #5 · answered by hcbiochem 7 · 0⤊ 0⤋