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Group 2: alkaline earth metals 4
Be 12
Mg 20
Ca 38
Sr 56
Ba 88
Ra * Atomic radius increases as you go down the Group. Notice that beryllium has a particularly small atom compared with the rest of the Group. * Are very chemically reactive (give up 2 electrons during reactions) and are never found free in nature (same as alkali metals) * These metals form many compounds. They have ions with a +2 charge. Their atoms are smaller than those of the alkali metals. * found in the Earth's crust * they are so reactive * though radium is not always considered an alkaline on earth due to its radioactivity * The alkaline earth metals are silvery colored, soft, low-density metals, though are a bit harder than the alkali metals * two valence electrons and tend to lose both to form ions with a two plus charge * Berylium is the least metallic element in the group and tends form covalent bonds in its compounds. * These metals are less active than the alkali metals, but are still fairly active * react readily with halogens to form ionic salts * can react slowly with water. Magnesium reacts only with steam and calcium with hot water * Beryllium is an exception: It does not react with water or steam, and its halides are covalent The alkaline earth metals are named after their oxides, the alkaline earths, whose old-fashioned names were beryllia, magnesia, lime, strontia and baryta. These were named alkaline earthsbecause of their intermediate nature between the alkalis (oxides of the alkali metals) and the rare earths (oxides of rare earth metals). The classification of some apparently inert substances as 'earths' is millennia old
What else can I help you with?
What is the number of valence electron for all the elements in periodic table group 2A 2?
Elements in group 2A of the periodic table have two valence electrons. This group includes elements such as beryllium, magnesium, calcium, strontium, barium, and radium.
The two most reactive groups of elements in the periodic table are the alkali metals and the what?
The two most reactive groups of elements in the periodic table are the alkali metals and the halogens. Halogens are nonmetals located in group 17 of the periodic table and include elements like fluorine, chlorine, and iodine.
Which can be found on a periodic table elements compounds or mixtures?
Elements are found on periodic table. Compounds are not present on periodic table. The table does not contains mixture.Elements can be found on a periodic table. Compounds can be made by bonding two or more elements. But they are not depicted on the periodic table.
What are the only two elements on the periodic table that's a liquid?
The two elements in periodic table which are liquid are: 1 mercury 2 bromine
Are group 12 on the periodic table lanthandies or actinides?
Group 12 elements on the periodic table are not lanthanides or actinides. They are transition metals, also known as the zinc group, which includes elements like zinc (Zn), cadmium (Cd), and mercury (Hg). Lanthanides and actinides are separate groups that are located in the inner transition metals section of the periodic table.
What group on the periodic table gains two electrons?
Group 16 elements.
What is the number of valence electron for all the elements in periodic table group 2A 2?
Elements in group 2A of the periodic table have two valence electrons. This group includes elements such as beryllium, magnesium, calcium, strontium, barium, and radium.
The two most reactive groups of elements in the periodic table are the alkali metals and the what?
The two most reactive groups of elements in the periodic table are the alkali metals and the halogens. Halogens are nonmetals located in group 17 of the periodic table and include elements like fluorine, chlorine, and iodine.
Which can be found on a periodic table elements compounds or mixtures?
Elements are found on periodic table. Compounds are not present on periodic table. The table does not contains mixture.Elements can be found on a periodic table. Compounds can be made by bonding two or more elements. But they are not depicted on the periodic table.
What 2 elements are found from Group 5a of periodic table in fertilizer?
Nitrogen and phosphorus are the two elements found from Group 5a of the periodic table that are commonly used in fertilizers for plant growth and development.
Which two elements are in the same group or family?
According to Chemists, the elements of sodium and chlorine belong to the same atomic family as well as carbon and lead.
What group in the periodic table has two valence electrons in their atoms?
The alkaline earth group has two valence electrons.
What name is given to group two in the periodic table?
Group-2 elements are alkaline earth metals. They are basic in nature.
What are the only two elements on the periodic table that's a liquid?
The two elements in periodic table which are liquid are: 1 mercury 2 bromine
Are group 12 on the periodic table lanthandies or actinides?
Group 12 elements on the periodic table are not lanthanides or actinides. They are transition metals, also known as the zinc group, which includes elements like zinc (Zn), cadmium (Cd), and mercury (Hg). Lanthanides and actinides are separate groups that are located in the inner transition metals section of the periodic table.
Why is water not found in periodic table?
Water is a COMPOUND of two(2) elements, viz. Hydrogen(H) and Oxygen(O). These tqo elements are both found in the Periodic Table. The Periodic Table is a list of ELEMENTS, not compounds.
Is group 2 on the periodic table all metals?
Yes, group two elements are all called alkaline earth metals.
