Cyclohexanol is an Alcohol..........
I got the answer !!! is Ar :))))
Mercury probably isn’t as adhesive as water
Answer:
<em>The correct option is B) Dalton</em>
Explanation:
In the 1800s, John Dalton was the scientist who further developed Democritus's work on atoms. John Dalton was the scientist who proved that each element is made up of a different kind of atom. He was also the scientist to propose that the same kind of element had the same kind of atoms. Also, John Dalton was the scientist to find out that atoms of an element could combine to form molecules and compounds.
Answer:
932.44 km/s
Explanation:
Given that:
The work function of the magnesium = 2.3 eV
Energy in eV can be converted to energy in J as:
1 eV = 1.6022 × 10⁻¹⁹ J
So, work function =
Using the equation for photoelectric effect as:
Also,
Applying the equation as:
Where,
h is Plank's constant having value
c is the speed of light having value
m is the mass of electron having value
is the wavelength of the light being bombarded
v is the velocity of electron
Given,
Thus, applying values as:
v = 9.3244 × 10⁵ m/s
Also, 1 m = 0.001 km
<u>So, v = 932.44 km/s</u>