Are elements with similar chemical properties more likely to be found in the same period or int the same group
819774
I thought it was the ones in the same colum, which is the period...I think. It's been a while.
56554
While I don't particularly feel like doing the work for you, this site gives information on why all of the elements are named as they are.\n\nhttp://www.ktf-split.hr/periodni/en/
200638
You can't.  You can guess if you have standards of similar compounds (assuming you know what similar involves).
579735
Guess a group 3 metal such as boron or Aluminium
854590
Recognize the patterns that occur in the table; it is not called "periodic" without reason. It is also helpful to associate each category with a familiar elemet, for example, silicon with metalloids, as it makes one familar with the properties of that group.
298587
Look up the site chemfinder.com.  its a good website if you have not heard of it already.
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.
497831
True: in the same set of conditions, minerals will be unique in their properties including electrical conduction, hardness, light reflection, ect. Minerals can be in different forms though, which you should always take into consideration.
852794
dobereiner's like that mendeleev guy right? if my memory is right, all  of the elements above have similar chemical properties, that's why he placed them in his "triads". This means that all of them act similarly. Remember that it is the VALENCE electrons that causes the specific reaction of an element. So, as all three elemnts have the same number of valence electrons, they act similarly.
30888
I'm not really sure what you mean, but here's a good site to look at the periodic table.\n\nhttp://en.wikipedia.org/wiki/Periodic_table
703218
A compound has a formula that tells us exactly how many of each kind of atoms a compound has. That compound is the same all over the world. \n\nOne exception to this may be if a different isotope of an atom was used. An isotope has the same number of protons but a different number of neutrons. So the mass would be slightly different.
597810
To be a homogenous a mixture must be the same throughout.  If you are only having 29 protons in the nucleus, then it is only one element.  Element number 29 is copper.  Try some nice copper wire.  Common and chemical names are both "copper".
329767
You might be looking for information on alchemy, not chemistry.  The two fields of study are very seperate these days.  Of course, modern scientits could turn lead into gold by nuclear fusion, or turn heavier elements into gold by fission- neither process seems practical.
20534
actually, they are if you think about it.  All protons, electrons, and neutrons are alike.  It's just that depending on how many of these things different atoms have makes them different elements, and gives them different properties.  Like, electrons occupy orbitals in different fashions, some are more stable, and some want to gain or lose electrons to be stable so that causes them to form compounds with other elements where one takes and one gives electrons(ionic bonds) or other compounds where they actually share electrons, forming new, hybrid orbitals(covalant bonds) and these properties give them different melting/boiling points, making them solid, liquid, and gas at different temperatures because the more stable an element or compound is, the higher its melting/boiling point will be.  Also, these properties with numbers of electrons cause the elements to absorb different wavelengths of light, and so reflecting different wavelengths and therefore different colors, making everything different colors.  Elements combining in different ways make things have different properties, and form big molecules and such, and this is what everything in the entire universe is made up of.  So down at the subatomic level, everything is made of protons, neutrons, and electrons.  And these 3 things are all made up of leptons and mesons, which are made up of quarks.  so everything boils down to quarks, so everything is a lot more alike than you think.
787215
have the same number of outer shell electrons.
859386
Due to differences in chemical structures
667142
http://www.chemicalelements.com/elements/br.html