Thomson suggested the model of atom which was a sphere of positive matter within which electronic forces determined the positioning of the corpuscles. The corpuscles were distributed in a uniform sea of positive charge. This was so-called "plum pudding" model.
Answer: C ) Thomson
Prokaryotes are organisms whose cells lack a nucleus and other organelles
Reduction is only one half of the reaction of a redox (reduction-oxidation reaction). It is characterized by the reduction of oxidation number or the gain of electrons. So, you would expect the reaction to have moles of electrons in the reactant side to depict gaining of electrons. The reduction reaction is as follows:
<em>HNO₂ + e⁻ --> NO</em>
Why only 1 e-? Compute the oxidation number of N in the reactant side.
1+x+2(-2) = 0; x = +3
Then, compute the oxidation number of N in the product side.
x -2 = 0; x = +2
So, there is a difference of 1 electron. Hence, 1e-.
Atoms become "magnets" when their electrons are properly arranged because whenever they have not enough or too many electrons, they will want to either give away an electron or take an electron, causing them to bond to other things.
The magnetic force experienced by a proton moving with a speed of 3 ×
m/s in the magnetic field B of magnitude 6 ×
T will be 2.88×
N.
Magnetic force can be defined as the attraction or repulsion force that arises between electrically charged particles due to the motion of the charged particles.
Given,
Speed = 3× m/s
Magnetic Field, B= 6 × T
Magnetic force is the product of velocity, the charge of a proton, and the magnetic field present there.
The magnetic force can be represented as:
F=qvB
F=1.6×
×3× ×6 ×
F=2.88× N
Hence, the magnetic force experienced by the proton will be 2.88× N.
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