22
How many neutons in Berryllium?
The element Argon has 8 Isotopes argon-35, argon-36, argon-37, argon-38, argon-39, argon-40, argon-41 and argon-42.The stable isotopes of argon are:argon-36, 0.34%argon-38, 0.06%argon-40, 99.60%Of the radioactive isotopes argon-39 has the longest halflife at about 260 years, all the others have halflives measured in days or much less.
10
2 neutrons
A silver atom has 47 protons and 61 neutrons.
Argon has 18 electrons.
the atomic number of hafnium is 72, protons? 72, neutrons? 106, electrons? 72
For each isotope the number of neutrons is different.Number of neutrons = Mass number of an No isotope - 102
Argon has 18 electrons.
9.1818 neutons
Argon has 8 valence electrons.
Argon has 8 valence electrons.