In this Unit we will cover: The formula of CaCl2 By Matt and Paulina
Part 1- Calcium
Calcium symbol is Ca and has an atomic number of 20. It looks like a silver metal at room temperature. It also has a charge as an ion of +2
What is calcium?
What is Chlorine?
Chlorine's symbol is Cl and has an atomic number of 17. The charge it has when its an ion is -1
Calcium has a charge of +2 and chlorine has a charge of -1 and were to make the overall charge nuetral.
How did we do that?
To balance out atoms we need to use some math. Since calcium has a +2 charge and chlorine has a charge of -1 we need to calculate how many chlorine atoms to make the charge nuetral. 1+1=2 so we need 2 chlorine atoms to make the charge nuetral