Alkali metals
The alkali metal belongs to the first group of the periodic table of elements, except hydrogen, which includes lithium (Li), sodium (Na), potassium (K), rub (Rb), cesium (Cs) and franc (Fr). The characteristics of alkali metals include:
Since these metals are alkali metals when they interact with water, hydrogen atoms divide into water molecules to form hydrogen, and the other hydrogen atoms form hydroxides with oxygen.
All the elements of the first group in the periodic table have valence electrons, and the electron distribution has s1, which means that it participates in chemical reactions.
The alkali metal is shiny, soft enough to cut the knife, usually white and yellowish-white. When placed in a flame, most produce a unique color, such as bright red in lithium and yellow in sodium. Heated potassium produces purple, dark red and light blue enamel. Therefore, they can be distinguished according to the color produced by the metal when heated.
Sodium is the sixth-highest element on Earth (2.6%), and potassium is the seventh (2.4%). Lithium and rubbing are much less abundant, and strontium is a very rare element. It contains a small amount of uranium ore. chemistry analysis
The alkali metal is a highly reactive element. They naturally have other elements. Some simple minerals that contain them, such as salt (sodium chloride), sulfite (potassium chloride) and magnesite (potassium chloride, magnesium chloride) stones dissolve in water. Metals are easily extracted and purified, but the earth's crust contains a large number of complex minerals that are insoluble in water.
Alkali metals react easily with oxygen and water vapor in the atmosphere (lithium also reacts with nitrogen in the atmosphere), often reacting violently (usually with violent reactions) with water to form hydrogen, strong base solutions and the most common uncommon solutions. Metal materials such as halogens and acids react. Sulfur Halogen and phosphorus also interact with many organic compounds, especially those that contain easily substituted halogens or hydrogen atoms.
When an alkali metal interacts with a nonmetal, it tends to form positively charged ions (cations), resulting in very strong compounds that attract each other by the positive and negative charges of solid crystals interconnected by ionic bonds.
Since these metals are alkali metals when they interact with water, hydrogen atoms divide into water molecules to form hydrogen, and the other hydrogen atoms form hydroxides with oxygen.
All the elements of the first group in the periodic table have valence electrons, and the electron distribution has s1, which means that it participates in chemical reactions.
The alkali metal is shiny, soft enough to cut the knife, usually white and yellowish-white. When placed in a flame, most produce a unique color, such as bright red in lithium and yellow in sodium. Heated potassium produces purple, dark red and light blue enamel. Therefore, they can be distinguished according to the color produced by the metal when heated.
Sodium is the sixth-highest element on Earth (2.6%), and potassium is the seventh (2.4%). Lithium and rubbing are much less abundant, and strontium is a very rare element. It contains a small amount of uranium ore. chemistry analysis
The alkali metal is a highly reactive element. They naturally have other elements. Some simple minerals that contain them, such as salt (sodium chloride), sulfite (potassium chloride) and magnesite (potassium chloride, magnesium chloride) stones dissolve in water. Metals are easily extracted and purified, but the earth's crust contains a large number of complex minerals that are insoluble in water.
Alkali metals react easily with oxygen and water vapor in the atmosphere (lithium also reacts with nitrogen in the atmosphere), often reacting violently (usually with violent reactions) with water to form hydrogen, strong base solutions and the most common uncommon solutions. Metal materials such as halogens and acids react. Sulfur Halogen and phosphorus also interact with many organic compounds, especially those that contain easily substituted halogens or hydrogen atoms.
When an alkali metal interacts with a nonmetal, it tends to form positively charged ions (cations), resulting in very strong compounds that attract each other by the positive and negative charges of solid crystals interconnected by ionic bonds.
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