Electrrons Test

Question 1

Problem with Rutherford’s model

Answer 1

in 1906 Einstein proposed that electromagnetic radiation behaves like both a wave and a particle and called this particles: protons
New thought about electrons: if light could be both particle and wave…then we should think about the electron as a particle

Question 2

Define light and electron based on Einsteins work

Answer 2

Light: particle and wave
Electron: both particle and energy

Question 3

4 variables used in Quantum Theory

Answer 3

Energy Level
shape of orbital
spatial orientation
electrong spin

Question 4

Four letters

Answer 4

SPDF

Question 5

Quantum numbers

Answer 5

n
l
ml
ms

Question 6

Dmitri Mendeleev

Answer 6

arranged the first 63 elements
made the periodic table

Question 7

Henry Moseley

Answer 7

number of protons in the nucleus of a particular type of atom is always the same
arranged the atoms according to increasing atomic number

Question 8

Periodic law

Answer 8

when elements are arranged according to increasing atomic number

Question 9

s-block

Answer 9

alkali metals
alkaline earth metals

Question 10

d block

Answer 10

transition elements

Question 11

p block elements

Answer 11

halogens noble gases

Question 12

f block

Answer 12

lanthanides actinides

Question 13

Atomic Radius

Answer 13

increases going down
decreases across

Question 14

electronegativity

Answer 14

increases across
decreases down