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What trend in ionization energy occurs going across a period on the periodic table and why?
Wiki User
∙ 9y ago
The ionisation energy increases across a period. Across a period, nuclear charge increases. The tendency to loose electron decreases.
Wiki User
∙ 9y ago
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What trend in ionization energy occurs going down on the periodic table and why?
when you go down a group you get more shells and in those shell are electrons the further away the electrons are from the protons and neutrons the less energy you need to pull of the electrons.
Which explains the change in ionization energy that occurs between removing the first and second electrons from an atom?
The attraction between electrons and the atomic nucleus is changed.
What is thhe process of a metal losing an electron?
an negative charge occurs :)
How often does something have to occur to be periodic?
PeriodicCyclicRepetitiveRecurringIterateReiterateIteration
What two properties is the modern periodic table based on?
The group proposing that elements within the same group have the same electron configurations in their valence shell, which is the most important factor in accounting for their similar properties. Elements in the same group also show patterns in their atomic radius, ionization energy, and electronegativity. From top to bottom in a group, the atomic radii of the elements increase. Since there are more filled energy levels, valence electrons are found farther from the nucleus. From the top, each successive element has a lower ionization energy because it is easier to remove an electron since the atoms are less tightly bound. Similarly, a group will also see a top to bottom decrease in electronegativity due to an increasing distance between valence electrons and the nucleus. While, the elements in the same period show trends in atomic radius, ionization energy, electron affinity, and electronegativity. Moving left to right across a period, atomic radius usually decreases. This occurs because each successive element has an added proton and electron which causes the electron to be drawn closer to the nucleus. This decrease in atomic radius also causes the ionization energy to increase when moving from left to right across a period. The more tightly bound an element is, the more energy is required to remove an electron. Similarly, electronegativity will increase in the same manner as ionization energy because of the amount of pull that is exerted on the electrons by the nucleus. Electron affinity also shows a slight trend across a period. Metals (left side of a period) generally have a lower electron affinity than nonmetals (right side of a period) with the exception of the noble gases.
What trend in ionization energy occurs across a period on the periodic table and why?
The ionisation energy increases across a period. Across a period, nuclear charge increases. The tendency to loose electron decreases.
What is the energy change that occurs when an atom loses electrons called?
ionization energy
What does ionization energy remove from an atom of an element?
Ionization energy and electron affinity for cations and anions, respectively.
What trend in ionization energy occurs going down on the periodic table and why?
when you go down a group you get more shells and in those shell are electrons the further away the electrons are from the protons and neutrons the less energy you need to pull of the electrons.
What does ionizing radiation sign mean?
If an atom is charged, and can bind together with radiation, then ionization occurs. When you have an energy source, you will typically have radiation as well.
What does the ionizing radiation sign means?
If an atom is charged, and can bind together with radiation, then ionization occurs. When you have an energy source, you will typically have radiation as well.
What are the most active metals in group 1A increases?
The reactivity of the alkali metals increases as you go down column 1 (or 1A) in a periodic table. This occurs because the first ionization energy of the metals decreases, as a result of "shielding" the outermost electrons from the attraction of the positive nucleus by the inner electrons.
Which explains the change in ionization energy that occurs between removing the first and second electrons from an atom?
The attraction between electrons and the atomic nucleus is changed.
How can a stream both erode and deposit sediments?
Erosion occurs where the stream has most energy, and deposition where it has least. This occurs as the amount of energy is not uniform across it's width.
Movement of a substance across a cell membrane using chemical energy occurs during?
active transport
What is fractional ionization?
Fractional ionization occurs when part of a cell loses ions due to collision of molecules. If the ions in the cell turn from positive to negative, but only part of them turn, this is called fractional ionization.
What trend in atomic radius occurs down a group in the periodic table?
Atomic radii increases moving down a group in the Periodic Table due to the increasing energy levels in the electron configuration and electrons filling in energy levels further away from the nucleus.
