Answer:
γ > β > α
Explanation:
The penetrating power is inversely related to the mass. The higher the mass, the lower the penetrating power.
α rays are Helium nucleus (He²⁺), that is, they are formed by 2 protons and 2 neutrons. The mass of an α particle is 4.001 amu.
β rays are nuclear electrons, which result from the decay of a neutron. The mass of a β particle is 1/1840 amu.
γ rays contain no particles and have no mass.
The order of penetrating power is γ > β > α.
FeS is an example of an ionic compound as in the formula there is a metal of Fe iron chemically bonded to the nonmetal S sulphur. Resulting in a strong electrostatic attraction due to the transfer of valence electrons from the iron to the Sulphur.
Answer:
Fluorine, Chlorine, Bromine, or Iodine
Explanation:
These all have an ALMOST full valence shell. And they need one more electron so they'd react with hydrogen
