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Alkali metals have increasing reactivity going down the group. Francium may not be considered as it is not a stable atom: it is radioactive. The next four are Cesium, Rubidium, Potassium and Sodium in decreasing reactivity order.
K Rb Cs and Fr are most reactive elements. Their atomic radius is more. Hence, they can easily loose electrons.
Alkali metals are the most reactive metals. The reactivity of these elements increase down the group. Cs,Rb,K,Na are the most reactive alkaline metals.
Francium. This is because it has the most energy levels in the alkali group, and the electrons are farther away from the nucleus. This means that the electrons are more easily taken.
If the question is "Which of the Alkali Metals are most important for life?" then the answer would be Sodium and Potassium. These are two elements that your body needs in order to survive.
francium. it is the most reactive element, but unfortunately it is also very radioactive.
Cesium and francium are the most reactive because down the group, reactivity increases.
K Rb Cs and Fr are most reactive elements. Their atomic radius is more. Hence, they can easily loose electrons.
Alkali metals are the most reactive metals. The reactivity of these elements increase down the group. Cs,Rb,K,Na are the most reactive alkaline metals.
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14 properties of metals?
1. All metals lose electrons however gold can form aurides. 2. All metals conduct electricity. 3. All metals do metallic bonding. 4. All metals have free electrons. 5. All metals react with fluorine. 6. No metals are gases at RTP, there're either liquid (caesium, gallium, mercury) or solid. 7. Nearly all metals are shiney silver in colour except copper, gold and osmium. 8. All metals are at least fairly good conductors of heat. 9. All metals form atleast 1 compound soluble in water. 10. All metals have atleast 1 full s subshell This is way to broad of a question to possibly get 14, there are many different groups of metals the s block metals which are split into alkali and alkali earth metals, transition metals, poor metals, rare earth metals which are split into lanthanoids and actinoids.
What are the groups of elements called in the periodic table?
The groups of the periodic table are:Group 1: Alkali MetalsGroup 2: Alkali Earth MetalsGroup 3: BoronGroup 4: CarbonGroup 5: NitrogenGroup 6: OxygenGroup 7: HalogensGroup 8: Noble or Inert Gases
What is the difference between a nonmetal atom and an anion of the same element?
the number of electrons in the outer shell .. for metals its less than 4 .. for non metals its more than 4 .. for semi its 4
Difference between metals non metals?
There are a number of ways in which a metal can be differientiate a metal from a non-metals, these involve contrasting the properties between metals and non-metals and testing them to distinguish them from one another. Some contrasting properties between metals and non-metals: 1.) Metals conduct electricity whereas non-metals do not. 2.) Metals are shiny whereas non-metals are not. 3.) Metals are malleable whereas non-metals are brittle. 4.) Metals often have a higher boiling/melting point than non-metals. 4.) Metals are hard whereas non metals are not.
At least 8 physical properties of non-metals and metals?
1. Melting point 2. Boiling point 3. Hardness (not for gases and liquids) 4. Maleability (for metals) 5. Ductility (for metals) 6. Thermall expansion coefficient 7. Density 8. Color and appearance 9. Thermal conductibility 10. Electrical conductibility
Where is the most reactive metals are found in the Periods table?
The most reactive metal on the table is Caesium. Fluorine is the most reactive non-metal on the table. For metal periods, reactivity decreases from left to right. Non-metals are the opposite.
What are 4 divisions of elements on the periodic table?
The 4 divisions are Alkali Metals,Transitional Metals, Halogens,Noble Gases .
What are the differences between alkali metals and transition metals?
Alkali metals are located in group 1 of the periodic table, have one electron in their outermost energy level, and are highly reactive. Transition metals are located in groups 3-12, have multiple electrons in their outermost energy level, and exhibit variable oxidation states. Transition metals are also known for their ability to form colorful compounds.
What are group 1 metals?
Group 1 metals are the alkali metals located in the first column of the periodic table, including lithium, sodium, potassium, rubidium, cesium, and francium. These metals are highly reactive and tend to form ionic compounds with nonmetals. They are known for their low melting points and softness.
What chemical property is shared by the elements in group one of the preodic tabel exept hydrogen?
The elements in group one (alkali metals) all have a single electron in their outermost shell, making them highly reactive. They readily lose this electron to form ionic compounds and are soft metals with low melting and boiling points.
The most reactive metal among the following is 1magnesium 2 potassium 3 silver 4 gold?
Potassium is the most reactive metal among the ones listed. It reacts vigorously with water, producing hydrogen gas and forming potassium hydroxide. Magnesium is less reactive than potassium, while silver and gold are much less reactive and are considered noble metals.
Are atoms with fewer electrons more reactive?
Atoms with fewer electrons tend to be more reactive because they are more likely to gain additional electrons to achieve a stable electron configuration. This process allows them to become more chemically stable, leading to increased reactivity.
What are the major families in periodic table?
The basic famillies are - Group 1 the alkali metals. Group 2 the alkali earth metals Group 7 the halogens Group 0 or 8 (depending on your periodic table) are the noble gases.
What are the 5 main goups on the periodic table?
1) Alkali metals 2) Alkaline earth metals 3) Lanthanoids 4) Actinoids 5) Noble gases 6) Other non-metals and 7) Poor metals 8) Transition Metals
How many valence electrons may metals have?
Different metals have different numbers of valence electrons. The alkali metals have 1. The alkaline-earth, transition, and inner transition metals have 2. Aluminum and those in its column have 3, tin and lead have 4.
What are some facts about alkaline earth metals?
Alkaline Earth Metal found in second group of periodic table. The components are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). Below some characteristics of Alkaline Earth metals, 1. These metals have an oxidation number of +2 that makes them very reactive. 2. These elements are not freely in nature. 3. These elements are found on earth crust but not in their basic form. 4. they have couple of electrons in their outer most shell. 5. They are distributed in rock structures. 6. They have a high boiling and melting point. 7. they have low density, electron affinity and electromagnetic. 8. they are silver in color. 9. ductile and malleable. 10. Easily reactive with halogens and water.
What kind of elements has less than 4 valence electrons?
Boron group, transition metals, alkaline earth metals and alkali metals are listed in the Periodic Table are having less than four valence electrons
