The periodic table is organized in a way in which trends with certain things such as ionization energy or atomic radius would "work out". It also have increasing atomic mass.
It's also organized to tell you the electron and proton of each element, least to greatest. (the atomic number) Example: Chlorine has 17 protons and 17 e-
(Left to right)
(Top to bottom)
Lanthanum and actinium play the role of being in the bottom because of their large atomic radius and having many protons/electrons.
They're also in the F block for electron configuration.
It is a solenoid.
The coil of wire looks like a spring and inside of it is a magnetic field
Answer: 9.5%
Explanation:
% deplected= Meject ÷ (Meject+Mleft) ×100%
Mleft=(165 - 146)kg = 19kg
% depleted = 2.0/(2.0 + 19) ×100=9.5%
Answer: b, d, e
Explanation:
A magnetic field is a field of forces that are always surrounding a source of magnetic energy, and it is in this region where elements sensitive to magnetism interact with it.
The magnetic fields are dipolar, they have a North pole and a South pole, which are also called the positive pole and negative pole.
Answer:
(a) 
(b) 
(c) 
(d) 
Solution:
As per the question:
Refractive index of medium 1, 
Angle of refraction for medium 1, 
Angle of refraction for medium 2, 
Now,
(a) The expression for the refractive index of medium 2 is given by using Snell's law:
where
= Refractive Index of medium 2
Now,
(b) The refractive index of medium 2 can be calculated by using the expression in part (a) as:
(c) To calculate the velocity of light in medium 1:
We know that:
Thus for medium 1
(d) To calculate the velocity of light in medium 2:
For medium 2:
