Write equations that show the processes that describe the first, second, and third ionization energies for a gaseous gadolinium atom. Express your answers as chemical equations separated by commas. Identify all of the phases in your 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) →  

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons