Answer:
proton number of hydrogen :1
proton number of calcium : 20
number of electrons for fluorine : 9
number of electrons for iodine : 53
number of neutron hydrogen :0
number of neutron iodine : 74
number of neutron gold(Aurum) :118
Explanation:
to get the number of neutron by number of nukleon minus the number of proton..
gold is aurum
the number of nukleon u can get at the periodic table .. by looking at the biggest number.. thats all.. i hope u understanding my explanation :'D hhihi see ya
