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The trend in period 2 ionization energy across the elements increases from left to right.

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Why does the first ionization energy generally increase across a period for the main group elements?

The first ionization energy generally increases across a period for main group elements because as you move from left to right across a period, the effective nuclear charge increases, making it harder to remove an electron from the outer shell. This results in a higher energy requirement to remove an electron, leading to an increase in ionization energy.


What is the exception to the trend of increasing ionization energy across a period in the periodic table?

The exception to the trend of increasing ionization energy across a period in the periodic table occurs when transitioning from group 2 to group 3 elements. This is because the group 3 elements have a slightly lower ionization energy compared to the group 2 elements due to the added stability of having a half-filled or fully-filled subshell.


What is the trend in ionization energy of period 3 elements on the periodic table?

The trend in ionization energy of period 3 elements on the periodic table generally increases from left to right.


How does the ionization energy change at the start of each new period of elements?

The ionization energy generally increases at the start of each new period of elements. This is because as you move across a period from left to right, the number of protons in the nucleus increases, leading to a stronger attraction between the nucleus and the electrons, making it harder to remove an electron.


What is the general trend of ionization energy as you go across the periodic table?

Across a period, first ionization energy increases. However, when going down a group, first ionization energy generally decreases. As you go down a group, atoms hove more total electrons so they don't really care that much about their outermost ones.

Related Questions

How does ionization energy of elements in the same period change?

Ionization energy increases as you go across a period, but as you go down a group it decreases.


Why does the first ionization energy generally increase across a period for the main group elements?

The first ionization energy generally increases across a period for main group elements because as you move from left to right across a period, the effective nuclear charge increases, making it harder to remove an electron from the outer shell. This results in a higher energy requirement to remove an electron, leading to an increase in ionization energy.


What happens to the first ionization energy of the elements as a period is crossed?

Moving from left to right across a period, the first ionization energy increases because it becomes increasingly difficult to remove an electron.


Does arsenic have the highest ionization energy?

No, arsenic does not have the highest ionization energy. Ionization energy generally increases as you move across a period in the periodic table from left to right. In the case of arsenic, it is found in the 3rd period, so elements to the right of it, such as bromine, have higher ionization energies.


Which element in the fifth period has the highest ionization energy?

The element in the fifth period with the highest ionization energy is xenon. Ionization energy generally increases across a period from left to right, so xenon, being on the far right of the period, has the highest ionization energy.


What is the exception to the trend of increasing ionization energy across a period in the periodic table?

The exception to the trend of increasing ionization energy across a period in the periodic table occurs when transitioning from group 2 to group 3 elements. This is because the group 3 elements have a slightly lower ionization energy compared to the group 2 elements due to the added stability of having a half-filled or fully-filled subshell.


Which elements has the highest ionization energy?

Helium (He) has the highest ionization energy, then Neon (Ne) Ionization energy increases as you go across a period from left to right. Ionization energy decreases as you go down a group. Therefore, elements in the upper right of the periodic table have the highest ionization energy.


What is the trend in ionization energy of period 3 elements on the periodic table?

The trend in ionization energy of period 3 elements on the periodic table generally increases from left to right.


Which has a greater ionization energy beryllium or germanium?

Beryllium has greater ionization energy, with 899 kJ/mol versus Germanium's 762 kJ/mol. The general trend (most prominently displayed in the representative elements) in the periodic table is increasing ionization energy across a period, and decreasing ionization energy down a group.


How does the ionization energy change at the start of each new period of elements?

The ionization energy generally increases at the start of each new period of elements. This is because as you move across a period from left to right, the number of protons in the nucleus increases, leading to a stronger attraction between the nucleus and the electrons, making it harder to remove an electron.


What is the general trend of ionization energy as you go across the periodic table?

Across a period, first ionization energy increases. However, when going down a group, first ionization energy generally decreases. As you go down a group, atoms hove more total electrons so they don't really care that much about their outermost ones.


Is it ionization energy is a periodic property?

Ionization energy generally increases across a period as a result of a higher nuclear charge, however there are some exceptions such as Boron which has a lower ionization energy than Beryllium (because it is in a P orbital), and Oxygen which has a lower ionization energy than nitrogen (Because ionization decreases the electron electron repulsion in its orbitals).