what are the chemical and physical properties of alkali metals?
184707
['shiny.', 'soft.', 'silvery.', 'highly reactive at standard temperature and pressure.', 'readily lose their outermost electron to form cations with a charge of +1.']
238510
alkaline earth metals are group 2 of the periodic tables, whereas alkali metals are in group 2. The major difference between alkaline and alkali is that alkaline earth metals have two valence electrons whereas alkali metals have one valence electron.
538042
They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). (Like the other elements in Group 1, hydrogen (H) has one electron in its outermost shell, but it is not classed as an alkali metal since it is not a metal but a gas at room temperature.)
817938
Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). ... The name comes from the fact that when these metals or their oxides are dissolved in water, a basic (alkaline) solution results.
827344
Key Points. The alkaline earth metals are shiny, silvery-white, and somewhat reactive metals at standard temperature and pressure. All the alkaline earth metals readily lose their two outermost electrons to form cations with a 2+ charge.
454300
['State of matter: solid, liquid, gas, plasma etc.', 'Physical properties like density, melting point etc.', 'Mechanical properties like hardness, strength, brittleness or ductility etc.', 'Electrical properties like conductivity.', 'Magnetic properties like ferro, para, and dia magnetism.']
638613
The alkali metals, found in group 1 of the periodic table, are highly reactive metals that do not occur freely in nature. ... 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.
421278
The transition metals have the following chemical properties in common: they are less reactive than alkali metals such as sodium. they form coloured ions of different charges. some are very unreactive (silver and gold)
541943
Alkali metals are among the most reactive metals. This is due in part to their larger atomic radii and low ionization energies. They tend to donate their electrons in reactions and have an oxidation state of +1. These metals are characterized by their soft texture and silvery color.
1414794
Cesium is an alkali metal, along with lithium, sodium, potassium, rubidium and francium. Alkali metals are highly reactive, have one electron in their outer shell, and do not occur freely in nature, according to ChemicalElements. ... Cesium is incredibly accurate at timekeeping and is used in atomic clocks.
882279
Physical properties Potassium is a soft, silvery-white metal with a melting point of 63°C (145°F) and a boiling point of 770°C (1,420°F). Its density is 0.862 grams per cubic centimeter, less than that of water (1.00 grams per cubic centimeter). That means that potassium metal can float on water.
571110
['Chemical composition.', 'Atomic bonding.', 'Corrosion resistance.', 'Acidity or Alkalinity.']
418892
The alkali metals are a group of chemical elements from the s-block of the periodic table with similar properties: they appear silvery and can be cut with a plastic knife. Alkali metals are highly reactive at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1.
132772
Their chemical activity increases as you move downward through the periods from Li to Na to K, etc. Alkali metals tend to lose one electron and form ions with a single positive charge. They form ionic compounds (salts) in reaction with the halogens (alkali halides).
52941
Alkali metals are among the most reactive metals. This is due in part to their larger atomic radii and low ionization energies. They tend to donate their electrons in reactions and have an oxidation state of +1. ... All these characteristics can be attributed to these elements' large atomic radii and weak metallic bonding.
633710
Specifically lithium is an alkali metal (so are sodium , potassium , rubidium, caesium , francium ). Metals react with oxygen in the air to oxidize (vigorously so in this case, lithium burns at room temperature). ... These traits alone identify it as a metal. Alkali metals have their outermost electron in an s-orbital .
258327
Alkali metal, any of the six chemical elements that make up Group 1 (Ia) of the periodic table—namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids).