Alkali Metals

The first alkali metal is lithium, which is in the first group of the periodic table. It is a soft, silvery-white metal that is highly reactive and commonly used in rechargeable batteries.

No it's not an alkali metal the alkali metal group is in group one and two

Yes, alkali metals are malleable because they have metallic properties which allow them to be hammered or pressed into thin sheets without breaking. However, they are softer and more reactive compared to other metals, so they require careful handling.

1 electron in their outer shell, very reactive and are shiny but they lose their shiny surface when exposed to air.

If you drop sodium metal into water, two reactions happen:

first 2Na + H2O -> 2NaOH + H2

then 2H2 + O2 -> 2H2O

The second reaction causes the huge explosion that makes this either an "exciting" experiment (if you drop the sodium into water from thirty or forty feet up) or a dangerous one (if you do it in the classroom).

No, bromine is not considered an alkali metal. Alkali metals are elements in Group 1 of the periodic table, such as lithium, sodium, and potassium. Bromine is a halogen and belongs to Group 17 of the periodic table.

Sodium (Na) is the alkali metal in period 3 of the periodic table. It is located in group 1 and is known for its high reactivity with water and air. Sodium is commonly found in salts, such as sodium chloride (table salt).

Yes, alkali metals like lithium, sodium, and potassium readily react with oxygen to form oxides. This reaction is highly exothermic and can lead to the production of heat and light. The reactivity increases down the group as you move from lithium to potassium.

Alkali metals are the elements in the first column of the periodic table, also known as Group 1. This group includes elements such as lithium, sodium, and potassium. Alkali metals are highly reactive and exhibit similar chemical properties due to their single outer electron configuration.

Hydrogen (H) is more reactive. Francium (Fr) is less reactive.

The first alkali metal is lithium, which is represented by the symbol Li in the periodic table. It is a soft, silvery-white metal that is highly reactive and commonly used in various industrial applications.

No, iodine is not an alkali metal. Iodine is classified as a halogen, a group of elements that are highly reactive nonmetals. Alkali metals are a separate group of elements that include lithium, sodium, and potassium.

Alkali Metals belong to group 1 of periodic table. They have one electron in last or valence shell and are highly electropositive and have low value of Ionisation enthalpy. So the removal of last electron to form a cation(positively charged ion) is very easy and needs less energy as compared to other elements. As a result of this Alkali metals are highly reactive and readily form ionic compounds. Due to this they react with other elements or compounds and form ionic compound. Hence, they are found in their compounds and not in free state.

Alkali metals, such as lithium, sodium, and potassium, are highly reactive and can react violently with water or air. This can pose safety hazards and make them unsuitable for use in voltaic cells where stability and controlled reactions are required. Instead, non-reactive metals like zinc and copper are commonly used in voltaic cells.

Cesium has the lowest electronegativity among the alkali metals.

No, scandium is not an alkali metal. It is a transition metal located in group 3 of the periodic table. Alkali metals are elements in group 1 of the periodic table.

Most of the Alkali metals are soft enough to be cut with a knife, certainly Sodium, Potassium and Rubidium are.

The alkali metal density increases going down the group because the atoms have more electron shells as you go down the group, resulting in a larger atomic size. The increased number of electron shells leads to weaker attractive forces between the nucleus and the outermost electron, causing the atoms to be less compact and have lower densities.

since all the alkali metals have one electron in there outer most shell so there valency is always one & they are the most electropositive elements in the periodic table.they loose one electron from there outermost shell to form one positive charged cations.

alkaline earth metals and alkali metals have 2 and 1 electrons in their outer most shell and are not tightly bound to nucleus so they are ready to lose their outer most electrons to form mono and divalent cations.

No, scandium is not an alkali metal. It is actually classified as a transition metal due to its electron configuration and position on the periodic table.

The alkali earth metals are in the 2nd group, or column of the Periodic Table. They are bordered by the alkali metals on the left and the transition metals on the right.

No, Fe is not an alkali metal. It is the chemical symbol for iron, which is a transition metal. Alkali metals are found in Group 1 of the periodic table, such as lithium, sodium, and potassium.

Lithium flame colours are red or crimson when burned in a flame. This is due to the presence of lithium ions emitting light at specific wavelengths as they are heated in the flame. The colour can vary slightly depending on the temperature of the flame and other factors.