Elements of iodine are fluorine, chlorine, bromine, and astatine.
The answer to this question is A- evaporation
Answer : The isoelectronic groups are:
![He,Be^{2+},Li^{+}](https://tex.z-dn.net/?f=He%2CBe%5E%7B2%2B%7D%2CLi%5E%7B%2B%7D)
![N^{3-},Mg^{2+}](https://tex.z-dn.net/?f=N%5E%7B3-%7D%2CMg%5E%7B2%2B%7D)
![S^{2-},Ti^{4+},K^{+}](https://tex.z-dn.net/?f=S%5E%7B2-%7D%2CTi%5E%7B4%2B%7D%2CK%5E%7B%2B%7D)
Explanation :
Isoelectronic : It is defined as the compound or molecule having the same number of electrons and the same number of electronic structure.
- The element is helium. The number of electrons are 2.
- The element is beryllium. The number of electrons are 4. The number of electrons in
= 4 - 2 = 2 - The element is lithium. The number of electrons are 3. The number of electrons in
= 3 - 1 = 2 - The element is nitrogen. The number of electrons are 7. The number of electrons in
= 7 + 3 = 10 - The element is neon. The number of electrons are 10.
- The element is sulfur. The number of electrons are 16. The number of electrons in
= 16 + 2 = 18 - The element is magnesium. The number of electrons are 12. The number of electrons in
= 12 - 2 = 10 - The element is titanium. The number of electrons are 22. The number of electrons in
= 22 - 4 = 18 - The element is potassium. The number of electrons are 19. The number of electrons in
= 19 - 1 = 18
The isoelectronic groups are:
![He,Be^{2+},Li^{+}](https://tex.z-dn.net/?f=He%2CBe%5E%7B2%2B%7D%2CLi%5E%7B%2B%7D)
![N^{3-},Mg^{2+}](https://tex.z-dn.net/?f=N%5E%7B3-%7D%2CMg%5E%7B2%2B%7D)
![S^{2-},Ti^{4+},K^{+}](https://tex.z-dn.net/?f=S%5E%7B2-%7D%2CTi%5E%7B4%2B%7D%2CK%5E%7B%2B%7D)
The notion <span>an empty balloon have precisely the same apparent weight on a scale as a balloon filled with air depends on the diameter of the balloon. The weight of the balloon filled with air is equal to the mass of the balloon and the mass of the air inside. The mass of air inside is equal to the density of air multiplied by the volume of the balloon. If the balloon is large, then the two masses are equal whereas if not, the mass of air inside the inflation is neglible</span>
Answer:
See explanation
Explanation:
A drying tube prevents moisture from contaminating the reactants. The drying tube contains CaCl2 a hygroscopic material whose function is to absorb the moisture so that it does not react with the Grignard reagent. Without the desiccating action of CaCl2, moisture will enter the reaction chamber,contaminating the reactants.
If water reacts with the Grignard reagent, an alkane is formed. The mechanism of this reaction is shown in the image attached. R here represents the alkyl moiety of the Grignard reagent.