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What are group 1 and group 2 elements?
Group 1 elements, known as alkali metals, include lithium, sodium, potassium, rubidium, cesium, and francium. They are characterized by having a single electron in their outermost shell, which makes them highly reactive, especially with water. Group 2 elements, known as alkaline earth metals, include beryllium, magnesium, calcium, strontium, barium, and radium. These elements have two electrons in their outer shell and are also reactive, though less so than alkali metals.
What is an akalide metal?
An alkali metal is a group 1 element, Li, lithium; Na, sodium; K,potassium; Rb, rubidium; Cs, cesium; Fr, francium. The alkaline earth metals are group 2 elements, Be, beryllium; Mg, magnesium; Ca, calcium; Sr, strontium; Ba, barium, Ra, radium
How many electrons does the element barium have?
the answer is 28
How many bonds can Barium make?
Barium can typically form two bonds with other elements. It has two valence electrons that it can share or donate in chemical reactions.
List all of the alkali metals?
In order of reaction strength: Lithium Sodium Potassium Rubidium Cesium Francium Look in related links for a video demonstrating the reactions of different alkali metals mixed with water.
What pair of elements are most likely to form an ionic bond?
Highly electronegative and highly electropositive elements, e.g. Fluorine, Clorine, Oxygen, or Nitrogen and Sodium, Potassium, Rubidium, Cesium or Barium.
What are some reactivity?
lithium, sodium, potassium, rubidium, cesium, francium, beryllium, magnesium, calcium, strontium, barium, radium
What are the members of the alkali family?
Lithium, Sodium, Potassium, Rubidium, Cesium, Francium, Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium.
Why atomic radius of barium is less than atomic radius of caesium?
Both cesium and barium have their outermost electrons in the 6s sublevel, Cs with 1 and Ba with 2, but barium has one more proton in the nucleus than does cesium, and this produces a greater effective nuclear charge and more attraction for the outermost electrons. This in turn pulls the two electrons in the 6s sublevel of barium slightly closer to the nucleus compared to the one 6s electron in cesium.
The elements cesium Cs Barium Ba and lutetium Lu appear from left to right in Period 6 of the periodic table Among these elements the most reactive is?
The most reactive element among cesium (Cs), barium (Ba), and lutetium (Lu) is cesium (Cs). Cesium is located at the far left of Period 6 in the periodic table and has a single valence electron, which makes it highly reactive.
What groups are called the s group elements?
there are four group of elements s,p,d and f the s group of elements are the alkali metals and the alkali earth metals in the groups 1 and 2 respectively.that is,lithium,sodium,potassium,rubidium,cesium,beryllium,magnesium,calcium,strontium,barium,radium,
What ions will the elements form?
Rubidium 1+ Barium 2+ Chlorine 1- Selenium 2- Francium 1+
What elements are in biotoxins?
Lithium,Beryllium,Rubidium,Yttrium,Ruthenium,Rhodium,Silver,Antimony,Tellurium,Thallium,Mercury,Osmium,Barium,Cesium,Lanthanum,Cerium,Praseodymium,NeoDyMium,Samarium,Europium,Gadolinium,Terbium,Dysprosium,Holmium,Erbium,Thulium,Ytterbium,Lutetium.
Barium element is larger or smaller than caesium?
Barium is smaller than caesium. Different elements have different atomic radii, with caesium having a larger atomic radius compared to barium.
The elements cesium Barium and lutetium appear from left to right in Period 6 of the periodic table Among these elements the most reactive is?
Cesium (Cs) is the most reactive among cesium, barium, and lutetium because it is located at the far left of Period 6, making it the largest and having the lowest ionization energy. This means cesium readily loses an electron to form Cs+ ions, exhibiting high reactivity.
What are group 1 and group 2 elements?
Group 1 elements, known as alkali metals, include lithium, sodium, potassium, rubidium, cesium, and francium. They are characterized by having a single electron in their outermost shell, which makes them highly reactive, especially with water. Group 2 elements, known as alkaline earth metals, include beryllium, magnesium, calcium, strontium, barium, and radium. These elements have two electrons in their outer shell and are also reactive, though less so than alkali metals.
Which elements are less electronegative than barium (Ba)?
Cesium (Cs), francium (Fr), and radium (Ra) are the elements less electronegative than barium (Ba) since they are all located under barium in Group 1 and Group 2 of the periodic table.
