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What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
What is the general configuration of s-block elements?
The s-block elements consist of the alkali metals and alkaline earth metals, including hydrogen and helium. Most reactions of s-block elements involve the loss of an electron to form a singly positively charged ion.
Why do alkali's get softer down the group 1?
Alkali metals get softer down Group 1 due to an increase in atomic size and weaker metallic bonding. As you move down the group, the atomic radius increases, leading to a decrease in the strength of metallic bonding and making the metals softer.
Why do force of attraction between nucleus and electrons decrease in alkali metal as increase in size?
As alkali metals increase in size, the distance of the outermost electrons from the nucleus increases. The attraction between the electrons and the nucleus is electrostatic, and it is a fundamental property of electrostatic attractions that the attraction decreases with increasing distance between the attracting charges. Another way of describing this is that the attractive force is partially "screened" by the inner electrons between the outermost electrons and the nucleus.
Which alkali metal has lowest ionic mobility in water?
Among alkali metals, lithium ions have the lowest ionic mobility in water due to its smaller size and stronger attraction to water molecules. This results in greater hydration energy, which makes it harder for lithium ions to move in water compared to larger alkali metal ions like potassium or cesium.
When some aci is added to a solution of an alkali will the pH value of the solution increase or decrease explain?
When an acid is added to a solution of an alkali, the pH of the solution will decrease. This is because the acid will increase the concentration of hydrogen ions, leading to a more acidic solution.
Why Alkaline earth metals are harder than alkali metals?
It is because alkali metals are larger in size than alkaline earth metals.Also, the effective nuclear charge is more in case of alkaline earth metals. This makes their ionization enthalpies larger than alkali metals.
How can you describe the way the pH changes when a strong acid is added slowly to a strong alkali?
As a strong acid is added slowly to a strong alkali, the pH will gradually decrease due to the neutralization reaction. Initially, the pH will increase as the alkali is added, then start to decrease as the acid is added until it reaches a neutral pH of 7 when the acid and alkali are fully neutralized.
What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
What lead to the increase in the strength of alkali?
What lead the increase in strength of alkali was to improve strength and reliability. Strengths and drying shrinkage is the reasons for the studies to improve alkali.
What is the general configuration of s-block elements?
The s-block elements consist of the alkali metals and alkaline earth metals, including hydrogen and helium. Most reactions of s-block elements involve the loss of an electron to form a singly positively charged ion.
What does adding alkali to acid do to pH?
The solution become more and more alkaline and the pH increase.
What element are most reactive on the table?
Sodium, Potassium, and other alkali metals are very reactive due to the low ionization enthalpy. Flourine, Chlorine and other halogens are very reactive due to the high negative electron gain enthalpy.
What elements on the table are most reactive why?
Sodium, Potassium, and other alkali metals are very reactive due to the low ionization enthalpy. Flourine, Chlorine and other halogens are very reactive due to the high negative electron gain enthalpy.
Why do alkali's get softer down the group 1?
Alkali metals get softer down Group 1 due to an increase in atomic size and weaker metallic bonding. As you move down the group, the atomic radius increases, leading to a decrease in the strength of metallic bonding and making the metals softer.
Why does lithium have a stronger ion-dipole interaction with water?
Lithium has a small ionic radius and high charge density, which allows it to have a strong attraction to the partial charges on the water molecule. This leads to a stronger ion-dipole interaction with water compared to other larger alkali metal ions.
Why do force of attraction between nucleus and electrons decrease in alkali metal as increase in size?
As alkali metals increase in size, the distance of the outermost electrons from the nucleus increases. The attraction between the electrons and the nucleus is electrostatic, and it is a fundamental property of electrostatic attractions that the attraction decreases with increasing distance between the attracting charges. Another way of describing this is that the attractive force is partially "screened" by the inner electrons between the outermost electrons and the nucleus.
