Which is larger metal atoms or metal ions. Explain.?
536511
If you mean atomic radius, the atoms.  The ions will most likely have shed their outer electrons to form the ion, such as Ca +2, while the atoms keep that outer shell, which increases the radius.\n\ndkrgrand:  That's the whole point.  The size of Ca (the metal) is bigger than the size of Ca+2 (the ion) because of the missing shell.  This is what was asked.
482317
Atomic wt of Al is 13,Cu is 29,Zn is 30 and Fe is 26.So less atomic wt,Al contains more number of atoms in 50gm
263837
A Magnesium atom has 1 extra electron than Sodium, but this extra electron is going into the same electron shell as Sodium's (the 3S orbital), so Magnesium isnt getting any larger.  In fact, because of Mg's extra 1 proton, it actualy gets smaller since the nucleus is pulling the electrons in closer.\n\nCalcium is the next element down in the column on the periodic table.  Following the trend, Calcium will be much larger than Mg since it has an entire 8 extra electrons in two additional orbitals.  The size of the atom is greatly determined by how many electrons and in how many orbitals there are away from the nucleus.
932777
ok. To tell which elements are more metallic then others, It depends on the left over valence electrons that are attracted to the positively charged cations in a metal. To tell which elements are more active then others it is towards the right of the periodic table. Noble gases are non-reactive. To tell which atoms are bigger then others remember going from top to bottom in a group, atomic size increases, going from left to right across a period, atomic size decreases.(there is a pattern to this). \nI think if there are more valence electrons, the stronger the metallic bond is.
876338
All three of these ions have the same number of electrons, they are "isoelectronic."  The size of the ions thus depends on the number of protons in the nucleus.  As we move to the right across a row on the periodic table, the number of protons in the nucleus, and thus the nuclear charge, increases.  This increase in nuclear charge pulls the electrons in tighter, thus reducing the size of the ions.  Na+ > Mg2+ > Al3+
481084
Well, it all depends on what kinds of atoms are involved.   For instance, a covalent bond between two atoms with very small radius is probably much greater than an ionic bond between two atoms with similar electronegative values.  What I mean is that comparing ionic and covalent bonds is a relative thing; there are many premises involved.
980772
A negative ion will be larger than the atom; a positive ion will be smaller than the atom.
881483
cations form when the atoms lose an electron or more and have + valency , so the mass will decrease and the effect of the nuclei on the remaining electrons will be stronger so it attracts them stronger toward the center so the size will decrease .. while in the anions the number of electrons increase so the attraction caused by the nuclei is weaker so the size is larger ..\n\nsize of the cation of an element < size of the atom of that element < size of the anion of that element
1013374
In chemistry, a metal (Greek: Metallon) is an element that readily forms ions (cations) and has metallic bonds. Metals are sometimes described as a lattice of positive ions (cations) surrounded by a cloud of delocalized electrons. The metals are one of the three groups of elements as distinguished by their ionisation and bonding properties, along with the metalloids and nonmetals. On the periodic table, a diagonal line drawn from boron (B) to polonium (Po) separates the metals from the nonmetals. Elements on this line are metalloids, sometimes called semi-metals; elements to the lower left are metals; elements to the upper right are nonmetals.
252404
An element is reactive because it is unstable.By reacting with other substances it tries to become stable.\nin case of metals or as u say positively charged elements,say,Li,Na,K...the atomic size is increasing on going down.As the size increases the the nuclear pull for the valence shell decreases,thereby making it easier to lose electrons.Thus,K easily loses electrons as compared to Na or Li and is therefore more reactive.\nin case of negatively charged atoms or non metals,the atomic size is again increasing for eg in case of F,Cl,Br..\nbut the case is opposite here.\nthe atom has to gain one electron in order to become stable.\nthe smaller the atom the more is the nuclear pull for the incoming electron and more readily it is accepted.\nthus in this case,reactivity decreases down the group.
486351
Cu.\nIt is a transition metal with ions of Cu+ and Cu2+.
161570
Metals become magnetized more easily than other materials because of the way in which their molecules bind to each other.  The positive nucleii align while the surrounding electrons (negatively charged) float around in a "sea of electrons."  Because magnetism is simply the attraction of positive charge to negative, anything can become magnetic, though it may take more work to break the electrons free of their orbits around the central positively charged nucleus.  The strength of magnetism is directly related to the amount of energy it takes to bring the electrons away from their positions around the nucleus.  In metals' case, it takes little.  In an MRI, it is actually water that is magnetized.
433490
Left to right across the periodic table the atomic size gets smaller.  Increasing the number of protons in an atom will cause the electrons to be pulled closer to the center.  However, going down the periodic table the increasing number of orbitals causes the size to get bigger.
764959
Metals generally form positive ions. Nonmetals generally form negative ions. The major exception is Hydrogen, a nonmetal that predominantly forms positive ions.
915058
As you go down group I (alkali metals), the size of the metal atoms will be larger. This is because the number of electrons (the atomic number) of each atom gets larger as you go down, thus the electrons occupy more shells, thus they cause the diameter of the atom larger.
945020
If you have your periodic table handy, look at the key for the table, where it will tell you which corner of each element's block has the atomic radius.  You will notice that atomic radius tends to increase as you go down the rows of the table.  Makes sense; More electrons means a larger atom.  As you go from right to left, however, you will see that, in any one row, the radius decreases until you get to about the middle of the row; then the radius begins to increase with the atomic weight.  On any row, the element at the left end (lower atomic weight) has a larger diameter than the one on the right end (higher atomic weight).  All of this out of the way, Beryllium is larger than Carbon, which is in turn, larger than Nitrogen.
371324
Negatively charged ion has one/some extra electrons than the corresponding neutral atom. so, deu to repulsion they stay more apart.\n\nthat is what i think is the reason why -ve ions have greater radious than neutral atom.