General and Analytical Chemistry Flashcards
tendency of an atom to attach to electrons
electronegativity
energy required to remove an electron in gaseous state
ionization energy
difference between intramolecular and intermolecular forces
intramolecular is the force between atoms while intermolecular force is between molecules
same element and same atomic number but different mass number
isotope
isotope with the highest mass number is said to be a
radioactive isotope
number of electrons = number of protons
T/F?
True
which group/family in the periodic table is hard and easily oxidized?
alkaline earth metals
which group from the periodic table forms soft minerals with metals?
chalcogens/oxygen
which group forms salt with metals?
halogen
which group B is considered hard, lustrous, shiny, increased density, mp and oxidation states?
transition metals (lanthanides and actinides)
shows energy level of atomic orbital
period/series
horizontal/column shows
which group
vertical/row shows
period/series
what are metalloids and state some elements
these are nonmetals/metals, semiconductors, can be hard to soft
metalloids are: boron silicon germanium arsenic antimony astatine tellurium
metals are characterized as
good conductors hard and lustrous donates electrons usually solid (only Hg is liquid) malleable and ductile low electronegativity & ionization state
nonmetals are characterized as
insulators
can be solid, liquid or gas
accepts electrons
high electronegativity & ionization state