2006-06-13 10:25:42 · 6 answers · asked by doomonyou! 3 in Science & Mathematics ➔ Chemistry
Calcium oxide is component of one calcium atom and one oxygen atom. Therefore, if two of the atoms are combined together, they shall have the combined number of protons.
Calcum Oxide has 28 protons and 28 electrons.
2006-06-14 00:54:36 · answer #1 · answered by prep 1 · 0⤊ 1⤋
Calcium Oxide has the chemical formula,
CaO
since Calcium likes to develop a +2 charge and Oxygen likes to have a -2 charge to complete their octets.
So for every 1 formula unit of CaO, there is 1 Calcium atom and 1 Oxygen atom (more precisely, there is 1 Ca+2 ion and one O-2 ion).
There are 28 electrons needed to make the overall neutral compound containing 28 protons.
2006-06-13 17:29:39 · answer #2 · answered by mrjeffy321 7 · 0⤊ 0⤋
I think that your assumption is incorrect. You took oxygen as a single atom (when you said 8 protons), and in reality oxygen never exists as a single atom. The balanced chemical equation is:
2Ca + O2 --> 2CaO
This is the balanced chemical reaction. According to this equation, there are 2 x 20 protons in Ca, 16 in oxygen and in 2CaO there are 2x20 + 16 = 56 protons, and 56/2 = 28 protons in a single CaO atom. As for the electrons, since the atom is electrically neutral, there are the same amount of electrons which means 28 electrons.
2006-06-13 17:51:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Calcium oxide would have 28 protons and 28 electrons for the entire molecule.
2006-06-13 17:28:17 · answer #4 · answered by TheOnlyBeldin 7 · 0⤊ 0⤋
28 protons, 28 electrons. When the compound is formed, it's the ionic forms of each, Ca 2+ and O 2-, so they form a stable compound then when the charges cancel each other out.
2006-06-13 17:30:12 · answer #5 · answered by pjfrmtw 2 · 0⤊ 0⤋
28 protons and 28 electrons,always is the same amount of protons and electrons.
2006-06-13 22:21:44 · answer #6 · answered by Anonymous · 0⤊ 0⤋