There are 24 protons in Chromium (including Chromium54) of any isotope. Isotopes are just elements with different numbers of neutrons. If it is called chromium it has 24 protons. The atomic number of an element is the same as the number of protons.
There are as many electrons as there are protons.
Osmium has as many protons as it needs
Xenon has 54 protons.
26 protons :)
It has 26 protons.
Bohrium has 107 protons.