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it donot chemically react with any other element,compounds,chemicals easily
They are called the transition metals. They sometimes have multiple valence states, which makes predicting how they react tricky. Often their symbol is accompanied by a Roman numeral, which simply tells you their number of valence electrons. For example, Cu(II) means copper with 2 valence electrons.
there called valence electrons
it very easy: whatever row the element is in is the number of energy levels it has. Example: hydrogen in the first row, it has 1 energy level.Read more: How_do_you_find_number_of_energy_levels_in_an_element
Those are the electrons most often involved in bonding with other elements.
Argon has completely filled valence orbitals and hence is chemically inert.
Valence Electrons
the element with seven valence electrons will be more reactive. The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The element with eight valence electron is happy with its full shell and will not want to get rid of any electrons.
it donot chemically react with any other element,compounds,chemicals easily
Some Synovial joints may have fluid-filled sacs called bursae.
They are called the transition metals. They sometimes have multiple valence states, which makes predicting how they react tricky. Often their symbol is accompanied by a Roman numeral, which simply tells you their number of valence electrons. For example, Cu(II) means copper with 2 valence electrons.
Octet A grouping of 8 bits, often used to identify the four 8-bit decimal numbers that compose an IP address (as in "first octet," "second octet," and so forth)
An octet is a unit of digital information in computing that consists of eight bits. The term is often used when the term byte might be ambiguous, because there is actually no standard for the size of the byte (although octet and byte are often used interchangeably). Since an octet has 8 bits, 4 octets would have 32 bits (4x8=32).
A group of eight can be called an octad (things) or an octet (often performers), or even an eightsome. A related adjective is octonary (related to or based on eight). In Egyptian Mythology there was a group of eight deities called the Ogdoad (the eightfold). There are also groups that are comprised of eight that go by other things. The "Group of Eight" industrialized countries is known just like that, or by the abbreviation G8. There is also a group called the "Group of Eight" that are Australian Universities.
there called valence electrons
The name most often given to the outermost shell of electrons in the context of atomic structure is the valence shell.
Unfortunately, not all duvets are hypoallergenic. There are brands that are and they are often called 'down alternative'. These are not filled with natural fibers like a common duvet, but are filled with anti-bacterial treated blown fiber fill.