Chem Chp. 2 Periodic Table Flashcards
Which groups are metals?
2-13
What are the qualities of metals?
lustrous solids (except mercy), high MP, can be hammered into shape (malleability), able to be pulled and drawn into wire (ductility)
What are the atomic characteristics of metals?
Low electronegativity, large atomic radius, small ionic radius, low ionization energy, and low electron affinity
What are the qualities of alkali and alkaline earth metals?
they are both metallic because they easily lose electrons from the s-subshells of their valence shell, and they react readily with nonmetals
What are the qualities of transition metals?
good conductors of heat and electricity, relatively nonreactive, hard, high MP and BP, form ionic compounds, many act as cofactors for enzymes, form colorful complexes when reacted with nonmetals
What are the atomic characteristics of nonmetals?
high ionization energies, electron affinities, and electronegativities, small atomic radii and large ionic radii, poor conductors of heat and electricity, brittle and non-lustrous
Describe the trends of atomic radius.
atomic radius increases going top to bottom in a group and decreases from left to right across a period
Describe the trends of ionization energy.
ionization energy increases from left to right across a period and decreases from top to bottom in a group
Describe the trends of electronic affinity.
electronic affinity increases across a period from left to right and decreases from top to bottom in a group
Describe the trends of electronegativity.
electronegativity increases across a period from left to right and decreases from top to bottom in a group
Which element is the most electronegative?
fluorine
What are the qualities of noble gases?
extremely low boiling points
What are the qualities of halogens?
highly reactive with nonmetals, naturally found in their halides/diatomic molecular states
