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Which element is a alkali earth metal?
Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
Is alkali earth metal?
Sodium is an alkali metal not alkaline earth metal. The elements lithium, sodium, potassium, rubidium, caesium and francium are part of the Alkaline metal group. With the symbol Na and the atomic number 11, sodium is a chemical element.
What kind of metal is cobalt?
cobalt (Co), chemical element, ferromagnetic metal of Group 9 (VIIIb) of the periodic table, used especially for heat-resistant and magnetic alloys.
Which of the following is not alkaline earth metal?
The correct answer is Sodium. Sodium is not an alkaline earth metal.
What are the difference between alkali and alkaline earth metals?
The key difference between alkali metals and alkaline earth metals is that all alkali metals have an electron in their outermost shell whereas all the alkaline earth metals have two outer electrons. The elements in these two groups are the most reactive metals in the periodic table.
Is alkaline and alkali the same?
Is there any difference between Alkali and Base? Alkaline and base are not the same they don’t have same meaning. Alkalis are those bases that can dissolve in water while those which don’t dissolve in water are not alkali. That is all bases are not alkaline except those that can dissolve in water.
Is cobalt atomic or molecular?
Cobalt is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is Co and its atomic number is 27, which means that a cobalt atom has 27 protons in its nucleus.
Is cobalt an alloy or metal?
Cobalt (Co) is a metal with the atomic number 27. Along with nickel and iron, cobalt is naturally ferromagnetic. Its density of 8.8g/m³ is similar to nickel (8.91g/m³) but heavier than iron. Cobalt is resistant to high temperature and melts at 1493°C.
What are some interesting facts about alkali metals?
Interesting Facts About Alkali Metals. Chemical elements that are found in Group 1 of the periodic table were called “Alkali metals”. This includes Lithium, Sodium, Potassium, Cesium , Rubidium , and Francium. Hydrogen, even though included in the Group 1 is not an Alkali metal.
What are some examples of alkali metals?
Alkali Metals: Lithium, sodium, potassium, rubidium , cesium and francium are examples of alkali methods. Alkaline Earth Metals: Beryllium , magnesium, calcium, strontium , barium and radium are examples of alkaline earth metals.
What are the uses of alkali earth metals?
the alkaline earth metals include: beryllium, magnesium, calcium, strontium, barium, and radium. beryllium is used to make some types of alloys (mixtures of two or more metals). Magnesium is also used in alloys for construction and in machinery like airplane parts.
What are the characteristics of alkali metals?
The alkali metals have the high thermal and electrical conductivity, lustre, ductility, and malleability that are characteristic of metals. Each alkali metal atom has a single electron in its outermost shell.