A calcium ion has 20 protons and 18 electrons. Each proton has a +1 charge and each electron has a -1 charge. What is the charge of the calcium ion?
well, what is 20-18?
well its 2
To determine the charge of a calcium ion, we need to consider the number of protons and electrons.
A calcium ion has 20 protons, which each have a +1 charge. Therefore, the total positive charge from the protons is +20.
A calcium ion has 18 electrons, which each have a -1 charge. Therefore, the total negative charge from the electrons is -18.
To find the overall charge of the calcium ion, we subtract the total negative charge (-18) from the total positive charge (+20):
+20 - 18 = +2
Therefore, the charge of the calcium ion is +2.
To determine the charge of the calcium ion, you need to understand how charges are calculated in ions.
The charge of an ion is determined by the difference between the number of protons (positive charge) and the number of electrons (negative charge).
In this case, a calcium ion has 20 protons and 18 electrons. Since each proton has a +1 charge and each electron has a -1 charge, we can calculate the overall charge of the ion.
The number of protons (-20) is greater than the number of electrons (-18), resulting in a net positive charge.
So, the charge of the calcium ion is +2.