Wave particle duality is the concept in quantum mechanics that every particle or quantum entity may be described as either a particle or a wave. It expresses the inability of the classical concepts "particle" or "wave" to fully describe the behaviour of quantum-scale objects.
        
             
        
        
        
Answer:
See explanation
Explanation:
In the Rutherford experiment, alpha particles were directed at the same spot on a thin gold foil. 
As the alpha particles hit the foil, most of the alpha particles went through the foil. In Rutherford's interpretation, most of the particles went through because the atom consisted largely of empty space.
However, some of the alpha particles were deflected through large angles, in Rutherford's interpretation, the deflected alpha particles had hit the dense positive core of the atom which he called the nucleus. 
This accounted for their scattering through large angles throughout the foil in all directions.
 
        
             
        
        
        
Answer:
radius = 156 pm
Explanation:
The relation between radius and edge length of unit cell of BCC is
r=a /4
/4
Given
a = 360 pm
Therefore
r = r = radius = 360 /4= 155.88 pm
/4= 155.88 pm
Or
156 pm
 
        
             
        
        
        
Use a strip of paper covered in PH indicating dye.
        
             
        
        
        
Answer:
A
Explanation:
Cs has a higher rate of reaction because it's easier to remove an electron from it, thereby leading to faster reactivity