Which one should i pick?
when an electron is added to a neutral atom, energy is:
a. always absorbed
b. always released
c. either absorbed or released
d.neither absorbed or released
is it a or b, could u explain why
2006-11-14 11:09:30 · 3 answers · asked by Ballerina 1 in Science & Mathematics ➔ Physics
thank you life
2006-11-14 11:50:29 · update #1
I agree with LIFE here
2006-11-14 11:37:30 · answer #1 · answered by kihela 3 · 0⤊ 0⤋
b. always release.
In chemistry, electron gain enthalpy (related to but not equal to electron affinity) is the enthalpy change when an electron is added to a neutral isolated gaseous atom to form a gaseous anion with a -1 charge.
All elements have a negative electron gain enthalpy, but older texts mistakenly report that some elements such as inert gases have positive EGE, meaning they repel electrons. This is not recognised by modern chemists. This means they do not require energy to gain an electron; instead, they release energy. Atoms whose anions are relatively more stable than neutral atoms have a more negative EGE. Chlorine most strongly attracts extra electrons; mercury most weakly attracts an extra electron. EGE of noble gases are close to 0.
Although EGE vary in a chaotic manner across the table, some patterns emerge. Generally, nonmetals have more negative EGE than metals.
2006-11-14 19:23:02 · answer #2 · answered by life 4 · 0⤊ 0⤋
what for!!!!???? It's your homework, you do it. Lazybones. If you're not going to do the research, what's the point of being in school to LEARN.
2006-11-14 19:22:01 · answer #3 · answered by babysweetvee 3 · 0⤊ 0⤋