Is there an  metal element CN and if so what is it?
553390
No, CN- is the cyanide ion.
762502
Period 6 is the 6th row, so elements from 56 to 86, including Lanthanoids.\nI would have said Iron, Cobalt, Nickel, Oxygen or Silicium, but none are in the 6th period.  Maybe you meant the 6th group?  As in column?  Then iy would be oxygen.
878474
Um, there's over a hundred elements.  I'm not going to name them all for you.  Look at a periodic table.  I'm sure there's one in your chemistry book.
796961
you need a periodic table... just look for the symbol NA... and the atomic number 15, also look for it on the table.. it shud be under the 2-3 letter symbol of the element.
933780
CO2 and H2SO4\n\n"metal" belongs to group IA, IIA, and B\n\nNa is IA\nK is IA
911740
Indeed, nickel is an element and as such does not have a 'formula' (a term reserved for compounds) so its' 'symbol' is Ni.\n\nHowever, as it is found in nature it is usually found as a mineral(s) (or-ore deposits) as: Nickeliferous limonite: (Fe,Ni)O(OH) and garnierite (Ni,Mg)3Si2O5(OH) and also in pentlandite: (Ni,Fe)9S8.\n\nGet an "A".
74018
Some atoms do not loose their electrons easily.  These can either share electrons (like carbon usually does) or snatch electrons from other atoms to become negative ions (like Fluorine does).  Most metallic elements easily loose electrons to become positive ions (like sodium Na - e- = Na+).
721711
EAN Rule states that in forming a complex, ligands are added until the total number of e- in the central metal atom/ion becomes the same as the number of e- in the next inert gas.\n\ni.e. at.no. of the central metal atom+no. of e- lost in forming the complex+no. of e- gained by co-ordination should be equal to the no. of e- in the next inert gas.\n\nCr(CO)6\nat. no. of Cr+no. of e- lost in forming the ion+no. of e- gained (bcoz of CO).\n24+0+6*2=36 \nwhich is the at.no. of the next noble gas(Kr).\n(here the no. of e- lost in forming the ion is 0 bcoz Cr(CO)6 is a neutral complex & CO is also neutral in charge.Each CO group donates 2 e- , making a total of 12e- for 6 CO groups.\nHence it obeys EAN Rule.\n\nsimilarly you can work out for others also.\n\nwell the answer for your ques is Mn(CO)6 & V(CO)6.
667142
http://www.chemicalelements.com/elements/br.html
131141
Please edit your question to say what element you mean.  Same for the other one a few minutes earlier.
1145844
Well, iron is a metal that doesn't contain carbon. Both are elements i.e. substances that can't be broken down into simpler substances by a chemical reaction. Most of the known elements in the universe are metals eg. aluminium, gold, copper, but the non-metals are more abundant eg. oxygen, hydogen. They are termed metals because of their structure and the way in which they bond to other elements. Maybe by metal you meant metal alloy. Steel is an alloy (mixture) of iron and carbon. I think all alloys of iron have some carbon in them. Don't know if this is what you meant but it was good trying to think about an answer.
418822
metals: give up electrons in ionic bonds. They also form metallic bonding.  sodium, potassium, lithium, to name just a few. There are a lot of metals\n\nnonmetals: this is more more difficult group to describe. They materials like to form covalent bonds--a joint sharing of two electrons. Both hydrogen and oxygen are nonmetals. But hydrogen gives up its electon in an ionic bond. For example HCl. It that repect it acts similar to a metal. Carbon is also a nonmetal\n\nMetaloid: silicon, germanium, boron, arsenic, antamony. These elements are right on the line between metals and nonmetals. As a result they make good semi conductors.
224420
how far it is from the edge of the periodic table. i.e., Francium has a charge of -1 because to get it to the noble gases it has to gain an electron. on the other hand, lithium would need to lose an electron to make it happy, giving it a charge of +1. Same concept for all elements.exclude scandium's period thru zinc's, as they are very different. Carbon's group is able to go either way, as it is equidistant from the noble gases. email me if you have any more questions.
928958
metal: simple element at room temp. except galium, mercury and cesium\n\nnonmetal: simple elemnent at the three states of matter
722015
it is a noble gas, but just because something isnt solid doesnt meanits a nonmetal. metals all become gasses at high temperature. the metals are on the left side of the periodic tabl and the non metals arre on the right. xenon is all the way on the right so its a non metal.\n\nhttp://en.wikipedia.org/wiki/Periodic_table#Standard_periodic_table
79044
Here is a centralized page of information, with several links along the left side for more information:\nhttp://www.webelements.com/webelements/elements/text/Cu/key.html
643732
The six cyanide (CN) radicals makes minus six charge. Fe can either have +2 or +3 charge. Even considering +3 for Fe, the net charge on [Fe(CN)6] is -6+3=-3 which can not be balanced by Zn as it can have only +2 charge. Because -3+2=-1 still remains i.e. charges are not balanced, the compound can not exist.