Asked by: Tiara Genest
asked in category: General Last Updated: 19th March, 2020

What is the trend in ionization energy across a period?

Ionization energy exhibits periodicity on the periodic table. The general trend is for ionization energy to increase moving from left to right across an element period. Moving left to right across a period, atomic radius decreases, so electrons are more attracted to the (closer) nucleus.

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In respect to this, why does ionization energy increase across a period?

The ionization energy of an element increases as one moves across a period in the periodic table because the electrons are held tighter by the higher effective nuclear charge.

what is the trend in first ionization energy across Period 3? Ionization energy generally increases across period 3 because the nuclear charge increases but the shielding of the outer electrons remains relatively the same.

Also know, what trend in ionization energy occurs across a period on the periodic table?

On the periodic table, first ionization energy generally increases as you move left to right across a period. This is due to increasing nuclear charge, which results in the outermost electron being more strongly bound to the nucleus.

What is the trend for ionization energy across a period and down a group?

Moving left to right across a period, atomic radius decreases, so electrons are more attracted to the (closer) nucleus. The general trend is for ionization energy to decrease moving from top to bottom down a periodic table group. Moving down a group, a valence shell is added.

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