Why p4 is highly reactive

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The free element metal can be produced artificially, and is highly reactive though in the atmosphere it is soon coated in a thin layer of oxide that partly inhibits reactivity — see passivation.

So now you can see that from the periodic table Magnesium is more reactive than Zinc and Aluminum. Because magnesium loses its electrons easily than zinc and aluminum, other elements and compounds like oxygen, water and the halogens reacts vigorously with atoms that loses electron easily. Silver is not very reactive.

It will not react with air or water. This is a relatively stable arrangement which makes the red phosphorus less reactive. A polyatomic element is an element which needs two or more of the same atoms bonded into a molecule to exist naturally. In an expression p4 is called a term. From there, it's mostly stoichiometry. Take the 24g of P4, divide by the molar mass You then have to convert, using the balanced equation, from moles of P4 to moles of PCl5, in this case multiplying by 4.

That will give you the number of moles of PCl5. The stoichiometry should look something like this Yes, nitrogen is found as N2 and is a gas at room temperature whilst phosphorus is found as P4 and is a solid at room temperature.

They can be up-gunned with missiles and horsepower. Phosphorus may rarely be seen as P, but it will usually be seen as white or red phosphorus, both of which are P4. White P4 is a tetrahedral structure. Red P4 is a chain-like structure, where one of the bonds from white P4 is broken and joined with a neighboring P4. P is the chemical symbol for phosphorus.

But you are correct in believing that the two most comman allotropes of phosphorus red and white phosphorus exist as P4. Another alloptrope is P2- Diphosphorus, which is highly reactive. P4 on the peroidic table is simply P for phosphorus. No, some elements are poly-atomic: diatomic: H2, O2, N2, etc. Nitrogen forms molecules N2, whereas phosphorus forms larger molecules such as P4.

Phosphorus has a number of allotropes. The underlying reason is that nitrogen a second period element can form double bonds to itself much better than P which is in period 3. A P4 usually refers to a fourth generation Pentium processor. This is attributed to the extra stability of the fully completed s-orbitals in Be 2s2 , Mg 3s2.

The gain of electron is highly endothermic. Electron gain enthalpy is defined as the amount of energy released when an electron is added to an isolated gaseous atom. Magnesium atom is small, so the attractive nuclear force will be more on the electrons whereas the size of Sodium atom is comparatively larger than Magnesium atom.

Thus, the force of attraction between the nucleus and added electron increases. Hence, electron gain enthalpy becomes more negative while moving right across period. So Boron has more negative value of electron gain enthalpy.