2007-05-03 07:20:53 · 7 answers · asked by perez n 1 in Science & Mathematics ➔ Chemistry
I don't have a periodic table, but it would be the element with 20 protons. Sulfur?
2007-05-03 07:24:12 · answer #1 · answered by Sam 5 · 0⤊ 0⤋
I believe the answer is Calcium (Ca).
It initially has 20e-, but when giving it the +2 charge what you're essentially saying is Calcium lost two electrons.
Therefore, you'd write the answer as Ca^+2.
** in case you don't know, the ^ means you write the +2 as if it were an exponent.
2007-05-03 07:28:29 · answer #2 · answered by Meechelle 3 · 0⤊ 0⤋
Ca++
the atomic number of Ca is 20
the electronic configuration of the neutral atom is
1s2 2s2 2p6 3s2 3p6 4s2
When the 2 electrons 4s2 are stripped of you have ion Ca ++
1s2 2s2 2p6 3s2 3p6
2007-05-03 07:26:57 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
The charge of the neutral atom would be 20, so calcium would qualify.
2007-05-03 07:25:09 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Ca
2007-05-03 07:55:29 · answer #5 · answered by blueboy3056 3 · 0⤊ 0⤋
That would be Calcium (Ca++)
2007-05-03 07:24:47 · answer #6 · answered by a simple man 6 · 0⤊ 0⤋
calcium cation (+ve ion).
2007-05-03 07:25:38 · answer #7 · answered by Anonymous · 0⤊ 0⤋