Electron Structure and Periodicity

Question 1

What is the wavelength-frequency relationship?

Answer 1

λv=c

Question 2

What does c stand for in the equation λv=c?

Answer 2

speed of light (2.998x10^8)

Question 3

Energy and wavelengths are _____ related. This is shown through this equation…

Answer 3

inversely; E= hc/λ

Question 4

In the equation E= hc/λ, what does h stand for?

Answer 4

Planck’s constant (6.626x10^-34 Js)

Question 5

What equation is used to calculate energy release?

Answer 5

∆E= 2.18x10^-18 (1/n^2 - 1/n^2)
(first n- lower; second n-higher)

Question 6

De Broglie’s wavelength equation

Answer 6

λ= h/(mass)(velocity)

Question 7

The principle energy level is represented by which quantum number?

Answer 7

The first (n)

Question 8

The sublevel is represented by which quantum number?

Answer 8

The second (l) (n-1)

Question 9

The orbital is represented by which quantum number?

Answer 9

The third (ml)

Question 10

Electron spin is represented by which quantum number?

Answer 10

The forth (ms)

Question 11

Atomic radius increases _____ and ____

Answer 11

down and left

Question 12

Do anions or cations have a larger atomic radius?

Answer 12

anions

Question 13

Ionization energy increases ____ and ____

Answer 13

up and right

Question 14

Electronegativity increases ____ and _____

Answer 14

up and right