In the discovery of neutron, the bombardment of beryllium with alpha particles is well known.
$$\ce{^9_4Be + ^4_2He^2+ -> ^12_6C + ^0_1n}$$
I don't understand how the electrons add up. As alpha particles do not have electrons, the total electrons should be 4 accounting for the electrons of beryllium, but after bombardment, there is a deficiency of 2 electrons in carbon atom. Shouldn't the $\ce{^12_6C}$ atom be positively charged? Like:
$$\ce{^9_4Be + ^4_2He^2+ -> ^12_6C^2+ + ^0_1n}$$