Well give the above information of protons and electrons. 
1 proton = +
1 electron = - 
1 neutron = 0. 
5 protons = + 5 
4 electrons = -4 
5 neutrons = 5 • 0 = 0 
Add the values together to find the overall charge of the ion. 
+5 + -4 = 5 - 4 = 1. 
The overall charge is +1, and is thus positively charged because there are greater number of protons than electrons in the ion.