Question

How is the ionization energy, E, related to a period of elements?

Answer 1

The ionization energy is an indicator of the reactivity of an element.

Answer 2

which one
E generally increases from right to left.
E generally decreases from right to left.
E is constant within any given Period.

Answer 3

As period increases from bottom to top, IE increases. This is because the principl3 quantum number goes DOWN, increases coulombic force of attraction

Answer 4

Moving left to right within a period or upward within a group, the first ionization energy generally increases.

Answer 5

Oh, you're saying ALONG a period
It's decreases right to left

Answer 6

This is because the Effective nuclear charge goes down due to decreases proton electron ratio, lowering coulombic FOA

Answer 7

As the atomic radius decreases, it becomes harder to remove an electron that is closer to a more positively charged nucleus.

we are talking vertically.

Answer 8

thanks

Answer 9

But there are 3 exceptions:
1. full s and 1 p e-
2. N and O, or parallel and 1 opposite orbital spin (grp 15 and 16)
3. 1 more and I forgot :( brain freeze