Properties
What is electronegativity?
tendency to attract e-s
Full innermost shell contains how many e-s?
2
The most stable group on the table?
18/noble gasses.
Formula for density?
D=m/v
The elements of this group are a gas at STP.
Group 18, the noble GASSES
What is ionic radius
distance nucleus to e-
The noble gasses are stable because they have ________ valance electrons?
8 (except He)
This group tends to gain 2 e-s when making bonds.
16.
Where are the transition metals? Describe
Group 3-12
What is the first ionization energy of iron?
762 kJ/mol
Which has the strongest electronegativity?
Na, Cl, Al, Zn
Cl
Which doesn't fit? Why (bonus)?
Mg, O, F, Cl
Mg, wants to get rid of e-s for stable valence shell.
What is periodicity?
Periodic repetition of patterns.
Describe the trend across the periodic table for electronegativity.
increases L-->R, decreases top down.
During lab, you spill HCl on your hand. What do you do?
Wash in sink immediately and tell your teacher.
Ionization Energy?
Energy required to remove outermost electron.
Gets smaller.
Group 13 Period 3
Ga
What are properties of metals?
Malleable, ductile, good conductors.
Where are the metalloids on the table?
Go down and to the left from boron.
Smallest atomic radius in group 1?
H
What are valance electrons?
Outer shell of e-s
Where should the lanthanides and actinides go on the modern table? Why don't we put them there?
Between La/Ac and Hf/Rf. Doesn't fit on a piece of paper :(
How many sig figs in 1930?
What is the charge of the nucleus of an atom of xenon?
+54