87
The most stable francium isotope (Fr-223) has 87 protons and 136 neutrons.
Francium has 87 positively charged protons and 87 negatively charged electrons, plus a varying number of uncharged neutrons, of which 136 is the commonest amount. Number of neutrons = Atomic mass of the isotope - 87
The 2014 Scion FR-S has 16 valves.
The 2013 Scion FR-S has 16 valves.
word is that only 100 she devil FR's were made. you can still find the she devil on sites with out the FR but your best chance at finding a she devil FR is by checking ebay everyday.
Osmium has as many protons as it needs
2 protons
It has 26 protons.
39 protons
26 protons
Bohrium has 107 protons.
how many protons does the carbonate ion have?