definitions
the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond
electronegativity
electronegativity is the ability of an atom to attract electrons
true
what are the two trends of atomic radius?
when you move left to right across the periodic table and when you move from the top of the periodic table down
does higher electronegativity mean more reactive?
yes
how many groups in the periodic table?
18
the amount of energy required to remove an electron from an isolated atom or molecule
ionization energy
first ionization energy decreases from left to right across a period
false
what are two things that influence atomic radius?
number of protons in the nucleus and number of energy level
what are the electronegativity values?
values for electronegativity run from 0 to 4
what particle is not inside the nucleus?
electrons
decreases from left to right across a period
atomic radius
atomic size increases as you move from left to right across a period of elements
false
what causes an increase in atomic radius?
The gain of an electron adds more electrons to the outermost shell which increases the radius because there are now more electrons further away from the nucleus and there are more electrons to pull towards the nucleus so the pull becomes slightly weaker than of the neutral atom and causes an increase in atomic radius
what causes more electronegativity?
as the number of protons in the nucleus increases, the electronegativity or attraction will increase.
what particle has no charge?
neutron