G11 Quiz 1 Chemistry Lesson 1

1-  All the following are from the properties of the cathode rays except they …………..

• have a thermal effect              

• move in straight lines

• are positively charged            

• are effected by both electric and magnetic fields

Geiger and .....................  performed Rutherford's experiment.

• Marsden         

• Dalton

• Rutherford     

• Thomson

From the properties of the cathode rays that………

• have mass only

• have charge only

• have no mass and charge

• have mass and charge

….................. rays are deflected towards the positive pole when it is affected by the electric field

• Alpha

• Gamma

• X

• The cathode   

The first scientist who defined the element is.............

• Bohr

• Boyle

• Rutherford

• Thomson

6-  All matters are composed of four components (water, air, dust, and fire) with a different ratio. That idea belongs to .............

• Aristotle

• Bohr

• Rutherford

• Dalton

The strong evidence that proved that cathode rays exist in all matters…………..

• flow in straight lines.

• consist of fine particles

• they have thermal effect.     

• they have the same properties and behavior whatever the

      gas or the cathode material used.

Cathode rays consists of particles called ............

• alpha particles     

• electrons

• atoms

• orbitals

Who first discovered the nucleus?

• Thomson

• Rutherford  

•  Bohr       

• Dalton

Who first discovered electrons?

• Geiger and Marsden          

• Thomson

• Dalton

• Rutherford