CH 1010 Chapter 3 Part 5

the energy required to remove an electron from the ground state in a neutral atom in the gas phase. (higher the Zeff, the higher the IE1) a negative and endothermic reaction

electron removal is a _____ process

decreases moving down, increases moving right

whenever moving from 1A-3A to become isoelectric w 8A the radius _____ with a ____ charge

whenever moving from 4A-7A to become isoelectric w 8A, the radius ___ and has a ____ charge

Alkali metals have the ____ IE1

Noble Gases have the ___ IE1

Periods _ and _ have differences in IE1

Between what elements do these exceptions occur? Between 2A/3A, 5A/6A

There is a giant increase in ionization energy when comparing removing the last valence electron to removing the ___ ___ electron

the energy released when a neutral atom in the gas phase gains an electron. positive and exothermic reaction. measure of the ability of an atom to accept an electron, more stable for more negative EA.

adding an electron is an ___ process

The more ____ the EA, the _____ the electron affinity

For which columns is EA positive?

IE is energy required to remove an electron, is it is positive and endothermic.

EA is the energy required to add an electron, it is negative and exothermic. (except for 2A and 8A)

EA generally ___ going down a group (less negative)

EA generally _____ going left to right across a period (more negative)

IE generally ____ going down a group (less positive)

IE generally _____ going across a row (more positive)

decreases going down, increases going across

increases going down, decreases going across