Atomic Theory 1
This scientist arranged the periodic table by atomic mass.
Who is Mendeelev?
elements that have one valence electron, highly reactive, ions with a positive one charge
What are alkali metals?
The trend that shows that atoms increase in size as you go down the periodic table
what is atomic radius?
Where is most of the atom's mass located?
Nucleus
The type of compound where sodium and chloride are bonded
What are ionic compounds?
The scientist that stated a sphere can be used to represent his atomic theory
Who is Dalton?
nonreactive elements with a full valence shell
what are noble gases?
The most electronegative element
What is fluorine?
Electrons have a _______ charge.
Negative
The type of compound where beryllium and sulfide are bonded
what are ionic compounds?
The scientist that first discovered the electron.
Who is Thomson?
elements with 2 valence electrons, very reactive, ions have positive 2 charge
what are alkaline earth metals?
The trend that shows that it requires less energy to remove electrons as you move down the periodic table
What is ionization energy?
What particles make up the nucleus?
Protons and neutrons
The type of compound where carbon and oxygen are bonded
what are molecular compounds?
This scientist is credited for the Nuclear Model of the atom.
Who is Rutherford?
elements with seven valence electrons, highly reactive, ions with a negative one charge
The trend that demonstrates atoms at the top right of the periodic table strongly attract electrons
What is electronegativity?
charged atoms that lost or gained electron(s)
What are ions?
The type of compound where oxygen and sulfur are bonded
What are molecular compounds?
The scientist that developed the planetary model of the atom
Who is Bohr?
group of elements that aren't very reactive, lose electrons and have a variety of charges
what are transition metals?
The repulsive force the decreases the attraction between the nucleus and valence electrons
What is shielding?
atoms with the same number of protons but different number of neutrons
What are isotopes?
The type of bonds in molecular compounds
What are covalent bonds?