Atomic history

Question

John Daltons 1808 atomic theories. Tick the correct answers.

Answer 1

All matter is made up of small identical particles

Answer 2

There were only 4 elements

Answer 3

particles named atoms could be broken into smaller particles

Answer 4

mass could be created

Answer 5

that charged particles were being emitted by the possitive cathode ray

Answer 6

that charged particles were being emitted by the negative cathode ray

Answer 7

that atoms were indivisible

Answer 8

placing a negative plate near the cathode ray tube

Answer 9

seeing the deflection of the rays when a positive plate was placed near the cathode ray tube

Answer 10

the colour of the ray changed

Answer 11

he did not prove the existence of electrons

Answer 12

Rutherford

Answer 13

a cheesecake - a layer of a positive charged and a layer of negatively charged

Answer 14

a wheel on a car - positive center with a negative spherical rim

Answer 15

a plum pudding - a mainly positive sphere with negatively charged electrons embedded in it

Answer 16

Atoms were indivisible

Answer 17

Atoms were composed of mainly negative spheres

Answer 18

Atoms were composed of mainly empty space

Answer 19

the neutron

Answer 20

the alpha particle

Answer 21

the proton

Answer 22

they didnt know there atomic weights

Answer 23

There wasnt enough known about the properties of the elements

Answer 24

Only a few elements could be organised in this way

Answer 25

positively charged electrode

Answer 26

negatively charged electrode

Answer 27

measure the wavelength of light

Answer 28

measure the mass and abundance of isotopes

Answer 29

measure the size of the magnetic field

Resource summary

	Created by ainearrigan almost 10 years ago