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Chemistry (a): electron configuration and element families
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what are two properties of representitive elements?
very reactive
soft, (able to be cut with a knife)
what are two properties of metals (in general)?
electrically conductive
malleable
what are two properties of nonmetals?
non conductive
brittle
what are two properties of metalloids?
properties of metals and nonmetals
semi-conductors
what are two properties of alkali metals?
softer than most metals
most reactive
what are two properties of alkaline earth metals?
very reactive
not found free in nature
what are three properties of halogens?
very reactive
low melting points
create compounds essential for body function
what are two properties of noble gases?
color-less
nonreactive
what are two properties of transition metals?
vary greatly in reactivity
most have high melting points
what are two properties of inner transition metals?
good conductors
malleable
Where are representitive elements?
left most column
Where are nonmetals?
to the right of the jagged line
Where are the metalloids?
surrounding dark line
Where are the alkali metals?
left-most column
Where are the halogens?
2nd column from the right (ends in p
5
)
Where are the alkaline earth metals?
2nd column from the left
Where are the noble gases?
right most column
Where are the transition metals?
in the d block
Where are the inner transition metals?
f block
What does the aufbau principle say?
electrons go into lowest energy orbital 1st
What does hund's rule say?
one electron goes into each orbital
of a sublevel
until all have electrons with parallel spins
What does the pauli exclusion principle say?
orbital describes a max of 2 electrons and
they must have opposite signs
horizontal rows on a periodic table are referred to as _______.
periods
vertical columns on a periodic table are referred to as _______.
groups/families
How many orbitals are in th s,p,d and f sublevels?
s:1
p:3
d:5
f:7
What is the max number of electrons the 3rd principal energy level can have?
18 electrons
What designates principal energy level?
n
What is the principal energy level?
how many "rings" an electron has or how many rows down it is
What is the sublevel?
has all orbitals (boxes in box notation for electron configurations) for s, p,d or f
What is an orbital?
box in electron configuration.
can hold 2 electrons maximum
What is the maximum number of elecrons a d sublevel can hold?
10 electrons
What is the max electrons a p orbital can hold?
2 electrons
Author
alipeace11
ID
63941
Card Set
Chemistry (a): electron configuration and element families
Description
chemistry (unit 3)
Updated
2011-06-11T16:06:28Z
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