# Francium and the alkali metals coursework

Alkali metals do not form nitrides except for Lithium. Stability of Hydroxides on Heating Alkali Metals: Many of these solid deposits occur as a result of ancient seas evaporating, which still occurs now in places such as Utah 's Great Salt Lake and the Dead Sea.

All these metals can be identified using the flame test as these metals exhibit a unique flame color when the metals are heated over a flame.

These metals include lithium, sodium, potassium, rubidium, cesium and francium. The reactivity increases further down the group as the electron that needs to be lost is further away from the positively charged nucleus and so the electrostatic attraction between the electron and the nucleus is much weaker.

Other important compounds of potassium include potassium hydroxide, used in the manufacture of detergents; potassium chlorate, used for the production of explosives; and potassium bromide, an essential chemical in photography.

The stability of the peroxide and superoxide increases as the size of the cation increases. Uses Lithium has many uses but two of its main uses are in batteries lithium batteries and lithium ion batteries and in lithium pharmacology.

All the alkali metals are ionic and show electrovalency. Alkaline earth metals are hard. As a result, they are found in nature only in combination with other elements. The alkaline earth metals: Potassium is so important for plants that it is found in almost all fertilizers, like the one shown here.

In fact, so much heat is released that the hydrogen gas produced in the reaction begins to burn. Potassium Like sodium, potassium occurs most commonly in the form of the chloride, potassium chloride.

All the alkali metals react with water, with the heavier alkali metals reacting more vigorously than the lighter ones. It is also the most stable out of the alkaline elements, as a solid it is a silvery gold.

Lithium compounds make a crimson flame when heated. Rubidium is also very reactive, it reacts when it comes in contact with water. No atoms were identified, leading to a limiting yield of nb. Especially when dissolved in water, these elements form strong bases alkalis capable of reacting with and neutralizing strong acids.

ISBN All the alkali metals have odd atomic numbers and they are not as common as the elements with even atomic numbers adjacent to them the and the alkaline earth metals in the Solar System. There is a short information for every element like picture, crystal structure and where it finds application or usage.

Its first use was as medical for headaches in medieval Europe. Potassium comes from the French word potasse later the English potashthe residue produced when wood ash solutions are evaporated so-called pot ashes ; its symbol K derives from the Latin kalium and ultimately Arabic qali, meaning "alkali.

Lithium is used in the manufacturing of ceramics, glass, batteries and lubricating greases. It is also very reactive, when it comes in contact with water it will start to bur and when it comes in contact with air it tarnishes.

Almost all the potassium used industrially goes into fertilizer. Starting with the least reactive magnesium, it is followed by calcium, lithium, sodium, and potassium.The alkali metals are the group of elements that have one valence electron in their outermost energy level (group 1).

They are found in nature bonded with other atoms because they are so reactive. The alkali metals are lithium, sodium, potassium, rubidium, cesium, and the radioactive francium.

As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals. Cesium and francium are the most reactive elements in this group.

The alkali metals are the six metals of Group 1 in the Periodic Table – lithium, sodium, potassium, rubidium, ceasium (cesium), and francium. Only lithium, sodium and. The reactivity of alkali metals increases from the top to the bottom of the group, so lithium $$\left(\ce{Li} \right)$$ is the least reactive alkali metal and francium $$\left(\ce{Fr} \right)$$ is the most reactive.

Because alkali metals are so reactive, they are found in nature only in combination with other elements. The alkali metals are lithium, sodium, potassium, rubidium, cesium, and francium. Alkali Metal Properties The alkali metals exhibit many of the physical properties common to metals, although their densities are lower than those of other metals.

Alkali metals share the characteristic of being malleable, ductile, good conductors of heat and electricity. Cesium and Francium are most reactive.

Francium and the alkali metals coursework
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