Sodium is more reactive than lithium because sodium is larger in size. Outermost electrons are less tightly held in sodium than in lithium. As a result, sodium loses its outermost electron more easily than lithium. Hence, it is more reactive than lithium.
The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive. Because alkali metals are so reactive, they are found in nature only in combination with other elements.
Conclusion: Potassium is more reactive than lithium due to its larger size, lower electronegativity, and lower ionization energy. The weaker attraction between the valence electrons and the nucleus in potassium makes it easier for the electrons to be removed, resulting in a higher reactivity.
It's precisely because it is divalent that Mg is less reactive than Li.
The lower the ionization energy the more reactive these metals. So the lithium is the least reactive and Cesium is the most reactive.
Flexi Says: The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive.
Rubidium - the 2nd most reactive metal in the whole world #chemistry #experiment #science.
Calcium reacts exothermically with cold water, producing hydrogen gas. The reaction is less vigorous than that between lithium and water. Other metals such as iron, zinc, copper, silver and gold also do not react with cold water, and so are less reactive than calcium.
Lithium and boron are two different elements that many people don't know the difference between them. It is less reactive than lithium, making it a safer chemical to use when creating batteries for anything from cell phones to cars, because of its low reactivity with other compounds or chemicals.
Answer and Explanation:
According to the reactivity series Li is the most reactive element among the given elements in this question. Argon is the least reactive as it is a noble gas.
According to the reactivity series, some of the metals that are more active than hydrogen are sodium, potassium, lithium, iron, chromium, nickel, tin, lead. These metals are above hydrogen in the activity series. Hence, metals more active than hydrogen are sodium, potassium, lithium, iron, chromium, nickel, tin, lead.
Reactivity. Lithium is part of the Group 1 Alkali Metals, which are highly reactive and are never found in their pure form in nature. This is due to their electron configuration, in that they have a single valence electron (Figure 1) which is very easily given up in order to create bonds and form compounds.
Among Sodium and Potassium, Potassium is the most reactive metal as it has lower ionization energy than sodium due to its bigger atomic size.
Cesium is the most reactive element since it is the second from the bottom of this group, has six electron shells, and exhibits the characteristics of a reactive atom. Fluorine is a noteworthy chemical element for many reasons, not the least of which is its unusual reactivity.
The reactivity of the alkali metals increases down own group. Potassium reacts morevigorously than sodium and lithium is the least reactive.
Lithium reacts intensely with water, forming lithium hydroxide and highly flammable hydrogen. The colourless solution is highly alkalic. The exothermal reactions lasts longer than the reaction of sodium and water, which is directly below lithium in the periodic chart.
In its chemical reactivity, lithium more closely resembles Group 2 (IIa) of the periodic table than it does the other metals of its own group. It is less reactive than the other alkali metals with water, oxygen, and halogens and more reactive with nitrogen, carbon, and hydrogen.
But is Radium or lithium more reactive? Radium is the most reactive alkaline earth.
Metals in decreasing order of their reactivity are - Potassium, Sodium, Lithium, Barium, Strontium, and Calcium.
And thus the reactivity of the alkali metals increases. We were asked to identify which statement best describes the difference in behavior between lithium in water and potassium in water. Potassium is lower down in group one, has more inner electrons, and is more reactive.
Lithium is the least reactive because it is the one with the least electrons. That means the electrons are closer to the nucleus and therefore more attracted to it.
As one moves down the group, the electropositive nature rises. Therefore, sodium is more electropositive than lithium and its size is larger as well. As a result, Sodium reacts with water more violently than Lithium.
Alkali metals: highly combustible metals that react with water to generate hydrogen, and are easily ignited; examples include sodium, potassium, lithium, rubidium and cesium.
The most reactive metal on the periodic table is francium. Francium, however, is a laboratory-produced element and only minute quantities have been made, so for all practical purposes, the most reactive metal is cesium.
The alkali metals (Li, Na, K, Rb, Cs, and Fr) are the most reactive metals in the periodic table - they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.