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Why does ionisation result in a decrease in size for potassium but an increase in chlorine?
Ionization of potassium (K) results in a positive ion, K+, which has the electronic configuration of Ar. The ionization of chlorine (Cl) results in a negative ion (Cl-), also with the electronic configuration of Ar. Adding an electron always increases the size of an atom, and removing one always decreases its size.
Note that both K+ and Cl- have the same number of electrons, but Cl- is larger than K+, because they are not as tightly held to the nucleus in Cl- because it has 2 less protons than potassium does. The size of the electron cloud determines the size of the atom and with fewer positively charged protons to pull the same number of electrons in close to the nucleus the electron cloud is larger for Cl-.
What else can I help you with?
Does the pH of the solution increase decrease or stay the same when you add solid potassium chloride to dilute solution of potassium hydroxide?
The pH of the solution will decrease when solid potassium chloride is added to a dilute solution of potassium hydroxide. This is because potassium chloride is a neutral salt that will not affect the pH significantly, while potassium hydroxide is a strong base. The addition of more chloride ions will reduce the concentration of hydroxide ions in the solution, leading to a decrease in pH.
Does the solubility of potassium nitrate in water increase or decrease as the temperature rises?
The solubility of potassium nitrate in water increases as the temperature rises. This is because heating water increases the energy of its molecules, allowing them to break apart the solid potassium nitrate more effectively and dissolve it.
Why do radii of atoms become smaller from sodium to chlorine?
The atomic radii decrease from sodium to chlorine due to the increase in effective nuclear charge as you move across the period. This results in a stronger pull on the valence electrons, causing the atomic size to decrease. Additionally, the increased number of protons in the nucleus as you move from sodium to chlorine also contributes to this decrease in atomic size.
Why potassium permanganate is good oxidizing agent compared to chlorine and potassium dichromate?
Potassium permanganate is a stronger oxidizing agent compared to chlorine and potassium dichromate because it has a higher standard reduction potential. This means that potassium permanganate is more readily able to accept electrons and undergo reduction reactions, making it more effective in oxidizing other substances. Additionally, potassium permanganate is stable in acidic conditions, unlike chlorine and potassium dichromate which have limitations in terms of pH compatibility.
How the hormone epinephrine increases the pumping rate of the sodium-potassium exchange pump in skeletal muscles?
Epinephrine binds to its receptor on skeletal muscle cells, activating a signaling pathway that results in an increase in intracellular calcium levels. This increase in calcium levels then stimulates the sodium-potassium exchange pump to work faster, increasing the pumping rate of sodium and potassium ions across the cell membrane, which helps maintain the electrochemical gradient necessary for muscle contraction.
Does an increase or decrease in potassium extracellular ions hyperpolarize a cell?
An extracellular increase of potassium (increase of intracellular Sodium) causes depolarization. The opposite, I presume, meaning high intracellular potassium (inside cell) and high extracellular sodium (outside cell) would be hyperpolarization
Does an increase in ECF K plus level increase heart rate?
Potassium levels DECREASE heart rate, and maybe lead to severe cardiac arrest.and for sure, this is a mechanism of how potassium level in ECF can decrease heart rate:first, the potassium level increase in ECF making its efflux increase, due to activation of potassium channels in pacemaker cells, then the slope of pacemaker action potential will decrease, which means that the duration of one beat is prolonged, and this lead to decrease the numbers of beats in one minute, which by turn means that the heart rate is decreased.
Does the pH of the solution increase decrease or stay the same when you add solid potassium chloride to dilute solution of potassium hydroxide?
The pH of the solution will decrease when solid potassium chloride is added to a dilute solution of potassium hydroxide. This is because potassium chloride is a neutral salt that will not affect the pH significantly, while potassium hydroxide is a strong base. The addition of more chloride ions will reduce the concentration of hydroxide ions in the solution, leading to a decrease in pH.
Does the solubility of potassium nitrate in water increase or decrease as the temperature rises?
The solubility of potassium nitrate in water increases as the temperature rises. This is because heating water increases the energy of its molecules, allowing them to break apart the solid potassium nitrate more effectively and dissolve it.
Why do radii of atoms become smaller from sodium to chlorine?
The atomic radii decrease from sodium to chlorine due to the increase in effective nuclear charge as you move across the period. This results in a stronger pull on the valence electrons, causing the atomic size to decrease. Additionally, the increased number of protons in the nucleus as you move from sodium to chlorine also contributes to this decrease in atomic size.
Does x increase or decrease making the y increase or decrease?
no. :)
What is in the middle of decrease and increase?
The midpoint between decrease and increase is stability or equilibrium, where there is neither a decrease nor an increase occurring.
Do you increase or decrease in mass?
you increase or decrease mass by taking the mass out
Does increase of inventory increase or decrease cash flow?
When adjusting your cash flow statement, you increase (add) a decrease of inventory and decrease (subtract) an increase of inventory
What is algebraic symbol of decrease and increase?
< = decrease > = increase
Do machines increase or decrease work?
they increase productivity but decrease jobs
What is decrease increase?
Increase means to get more and decrease means to get less
