An extra shell, which means further distance between those electrons in the valence shell and the nucleus. Ionisation energy refers to the energy required to remove valence electrons. There will be more energy required if the valence electrons are closer to the nucleus that have a positive charge, because of more attraction. If there is an extra shell, there is further distance, less attraction and hence less energy required.
Answer:
Robots will be created to allow scientists to use computer programs.
Explanation:
There are some other answers, but this one is more sufficient. :)
Answer:
It does not dissolve in water. It changes color after heating, It cannot be physically broken down into different types of atoms.
Explanation:
hope that helps
<span>Melting point. The alkali metals have low melting and boiling points compared to most other metals. Apart from the other alkali metals, only three metals (indium, gallium and mercury) have lower melting points than lithium. ... The melting points then decrease as you go down the group.
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~Lena~
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Answer:
Reaction is non-spontaneous when T > 738.5K and spontaneous when T < 738.5K
Explanation:
A reaction is non-spontaneous when ΔG° > 0 and is spontaneous when ΔG° < 0
ΔG° is defined as:
ΔG° = ΔH° - TΔS°
ΔG° will be > 0 (non-spontaneous) when ΔH° > TΔS° and vice versa. Thus:
-16100J > T × -21.8J/K
738.5K > T
That means the reaction is <em>non-spontaneous when T > 738.5K and spontaneous when T < 738.5K</em>
I hope it helps!
