The elements that form compounds difficulty in the fourth period in the periodic table
- In the fourth periodic table, there contain 18 elements that forms compounds difficulty beginning with potassium and ending with krypton – one element for each of the eighteen groups.
- This is as a result of the additional 10 electrons that are contributed by the the sublevel.
The period 4 transition metals are scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn).
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The moles of product are formed is 0.0303 mol
The process we are interested in is
3Mg + N2 to Mg3N2.
N(Mg3N2) = n(Mg)/3 = 0.0303 mol moles of product were produced.
<h3>What is Moles ?</h3>
A mole is the mass of a substance that includes 6.023 x 10^23 of that substance's particles. The mole is the SI unit used to measure a substance's quantity. It has the symbol mol. As a result: One mole of carbon-12 weighs 12 grammes and has a carbon atom content of 6.022140857 x 10^23.
- In particular, in terms of mass, it serves as a bridge between the microscopic and the macroscopic. A unit (atom or molecules) has the same mass in grammes as a mole of a substance has in atomic mass units.
Hence, moles of product are formed is 0.0303 mol
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Answer:
Subgroups S, P, D, F, including elements of blocks s, p, d, f, respectively.
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Explanation:
When some of the water evaporates then it means that molecules of water has absorbed heat from the surroundings and liquid state of water turns into vapour state.
Therefore, a cooling effect is observed because heat of surrounding molecules has decrease due to absorbtion by water molecules.
Hence, temperature will decrease as cooling effect is observed.