The diatomic molecule with a triple covalent bond is N2.
Nitrogen has five atoms in its valence shell. In order for it to attain the octet structure, that is, to have eight electrons in its outermost shell, it has to donate three electrons, just like the other element it is reacting with in order to form a triple covalent bond.
Answer:
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Explanation:
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She should boil the water extracting the salt from the water through evaporation.
Answer:
v = 301.62 km/s
Explanation:
Given that:
The work function of the magnesium = 3.68 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 = 3.0162 × 10⁵ m/s
Also, 1 m = 0.001 km
So, v = 301.62 km/s