Rank these elements according to electron affinity.
Br, S, Ne
most energy released by gaining an electron:
most energy absorbed by gaining an electron:
To rank these elements according to electron affinity, we need to understand what electron affinity means. Electron affinity refers to the amount of energy released or absorbed when an atom gains an electron to form a negative ion.
The general trend is that electron affinity generally increases as you go across a period from left to right on the periodic table. This is because as you move from left to right, the number of protons in the nucleus increases, resulting in a stronger attraction between the nucleus and the incoming electron. However, electron affinity does not always follow a strict increasing or decreasing pattern, as other factors such as atomic size and electron shielding also play a role.
Now let's rank the given elements according to their electron affinities:
Most energy released by gaining an electron:
1. Br (Bromine) - Bromine is the element with the highest electron affinity among the given elements. It is located on the right-hand side of the periodic table and has a stronger attraction for an electron compared to Sulfur and Neon.
2. S (Sulfur) - Sulfur is located in the same period as Bromine but towards the left side of the periodic table. It has a lower electron affinity compared to Bromine but higher than Neon.
3. Ne (Neon) - Neon has the lowest electron affinity among the given elements. It is a noble gas and, therefore, has a stable electron configuration, making it less likely to gain an electron.
Most energy absorbed by gaining an electron:
1. Ne (Neon) - Neon has the least energy absorbed when gaining an electron, as it has the lowest electron affinity.
2. S (Sulfur) - Sulfur has a higher energy requirement to gain an electron compared to Neon but lower compared to Bromine.
3. Br (Bromine) - Bromine has the highest energy requirement among the given elements, making it the element with the most energy absorbed when gaining an electron.
Remember that electron affinity trends can vary within a group or period of the periodic table due to the influence of other factors. Always refer to the periodic table and consider the specific elements in question to make accurate comparisons.
To determine the rank of these elements based on electron affinity, electron affinity is the energy change that occurs when an atom gains an electron. Therefore, the greater the energy released, the higher the electron affinity, and the greater the energy absorbed, the lower the electron affinity.
Ranking the elements from most energy released to least energy released (highest to lowest electron affinity):
1. Cl
2. S
3. Ne
Ranking the elements from most energy absorbed to least energy absorbed (lowest to highest electron affinity):
1. Ne
2. S
3. Cl