What is the second quantum number of a 2s^2 electron in phosphorus,
1 answer:
Answer:
l = 0
Explanation:
Second quantum number, also known as angular momentum quantum number (l), represents the shape of an orbital. Several quantum numbers and their corresponding orbital shapes are worth remembering:
- l = 0, this is an s-shaped orbital;
- l = 1, this is a p-shaped orbital;
- l = 2, this is a d-shaped orbital;
- l = 3, this is a f-shaped orbital
Notice that the angular momentum quantum number might be identified solely from the letter. Since we're considering a orbital, this means we're dealing with an s orbital. As defined above, s-shaped orbital would have an l value of l = 0.
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Answer: Energy of reactants = 30, Energy of products = 10
Exothermic
Activation energy for forward reaction is 10.
Explanation:
Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and for the reaction comes out to be negative.
Energy of reactants = 30
Energy of products = 10
Thus as energy of the product < energy of the reactant, the reaction is exothermic.
Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.
for forward reaction is (40-30) = 10.