the radioisotope radon-222 has a half-life of 3.8 days. how much of a 65-g sample of radon-222 would be left after approximately
1 answer:
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Answer:
Gd(g) → ,
→
,
→
Explanation:
Ionization energy is the energy required to remove an electron from a gaseous atom or ion.
The first ionization energy is the energy required to remove the valence electron(outermost) from a neutral atom:
Gd(g)→
The second ionization energy is the energy required to remove next/second electron from ion. The second ionization energy is always higher than the first:
(g) →
The third ionization energy is the energy required to remove third electron from ion:
(g) →