Create an account
the trends and behaviors of chemicals are displayed in patterns on the periodic table. this is called ____ ____.
____ was the first chemist to organize the periodic table in a way where patterns & chemical and physical properties can be predicted
what are some types of characteristics that can be predicted of an element based on its location on the periodic table?
color, atomic weight, density, Specific heat capacity, melting point ect.
_____ a British physicist arranged the elements in order according to increasing atomic number
two things that influence the attraction the electron has for the nucleus are:
distance e⁻ is from the nucleus
effective nuclear charge ( Zeff)
electrons in the SAME energy level do not __ one another; making on have a stronger pull onto the nucleus than the other.
the core electrons shield the valence electrons from filling the full attraction of the positive nucleus of the atom which is called the ____ _____.
(T/F) electrons with the same principle quantum number also shield each other, but to a very small extent; therefore they are ignored when looking at Zeff
Zeff ___ as you move across the period because the shielding constant remains constant since the core electrons are not increasing.
atoms get ____ as you move across a period because the shielding constant remains constant and the Effective nuclear charge (Zeff) increases, therefore the electrons are getting pulled ___ to the nucleus
the amount of energy required to move an electron from the ground state of a gaseous atom or ion is explained in the ______ process
(T/F)as you start removing electrons from the orbital there is a higher proton to electron ration, therefore the remaining electrons are getting pulled in harder by the nucleus.
once the atom reaches the electron configuration of a _____ ____, the ionization energy becomes extremely large b/c of the stable electron configuration
__________ is the tendency for an atom to attract electrons to itself when it is chemically combined with another element
an atom with a ___ electronegativity with pull harder on a shared bonding electron. an atom with a ___ electronegativity will not pull as hard on the shared bonging electrons
electronegativity ____ as you go across a the periodic table and _____ as you go down the periodic table.
how does the Pauling scale characterize each element/
on a number system from 0-4 (0 being the noble gasses with the lowest electronegativity, and the elements with the strongest electronegativity at 4)
(T/F) the difference in the electronegativities of two elements can be used to predict the nature of the chemical bond
if the difference of the two atoms' pauling numbers is zero what type of bond will it be?
if the difference of the two atoms' pauling numbers is greater than or equal to 2 what type of bond will it be?
if the difference of the two atoms' pauling numbers is between 0 and 2 what type of bond will it be?
increasing difference in electronegativity:
_____ --> ______ --> ______
(fill in the blank with: ionic, nonpolar covalent, and polar covalent)
nonpolar- polar- ionic
______ ____ are the outer energy level electrons of an atom. the valence electrons are teh electrons that participate in the chemical bonding.
the ___ ____ states that atoms tend to combine in such a way that they each have 8 valence electrons
_____ compounds are made up of nonmetals trying to achieve their octet by sharing their electrons.
what must you do to melt an ionic compound?
all the ionic bonds must be broken in order for the cations and anions to float around
what crystalline structure is made up of atoms, ions or molecules that are located on the corners and in the center of the cube?
what crystalline structure is made up of atoms, ions, or molecules that are located on the corners and on the faces of the cube?
______ alloys are where smaller atoms are fit into the spaces between larger metal atoms
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together