2
Alpha decay release a helium nucleus (2 protons and 2 nutrons).
Helium does not form compounds because of the electrons doesn't attract to nutrons Helium does not form compounds because the outer (only) shell of electrons is full. This is the valence shell, and in order for elements to form compounds, the valence shell must have available slots. Helium does not have any available slots in the valence shell, hence its inability to form compounds.
Chlorine typically has 18 neutrons in its nucleus, which accounts for its atomic weight of 35.45 g/mol.
Helium-4 has 2 electrons.
A neutral atom of helium has 2 electrons.
Not sure about nutrons, but xenon has between 70 and 82 neutrons.
mercury has 121 nutrons because the periodic table
Radium has 88 neutrons.
Typically, 69. However it can vary by isotope.
Einsteinium typically has 99 neutrons in its nucleus.
Alpha decay release a helium nucleus (2 protons and 2 nutrons).
7 is most common. It can also be 6 or 8.
Sodium-23 the only isotope occuring in nature has 12 neutrons
All isotopes of carbon have 6 protons.
10 protons, 8 (or more, up to 14) neutrons
none neon is the powder that electrons spark freeon to light photonic blue white
For each isotope the number of neutrons is different.Number of neutrons = Mass number of an isotope - 98