Question

Will fan and medal for correct answer and help!!

When a calcium atom forms an ion, it loses two electrons. What is the electrical charge of the calcium ion?

A.
-1

B.
+1

C.
+2

D.
-2

Answer 1

a atom is nutral (charge = 0) due to number of protons in nuclear eqouals number of electrons around nuclear
For atom of Ca 20p = 20e
so
if 2 electron are lost.....

Answer 2

+2. The neutral atom usually has the same number of electrons as it does for protons. This is true for every neutral atom, where the number of electrons= atomic number and the number of VALENCE electrons=group number (1-7). When the neutral charge is unbalanced by taking away 2 electrons (which have a negative charge), It leaves more positive subatomic particles (protons) than negative subatomic particles (electrons), making the overall charge POSITIVE. If a neutral atom minus the charge taken away gives us the current charge of the atom (and the electron is assigned a value of -1 and the proton +1), the result is +2 because:

0-(-2)=+2