-
PERRI DAINTY -
GROUPS : vertical column # is same as # valence e-
,
PERIOD :
horizontal row ,
# is same as # shells
⑥ ⑧ HIM * ⑥ TRIM %
o
Atomicradivs : distance from nucleus to outermost e-
*
increases down levels
→
group more
energy
→ decreases across *
attraction with more e- in same main level
period more
energy
o
I-oniad.us distance from nucleus
: to outermost e- in anion
→ + ions : decrease across period as more
protons and e- same
→
-
ions : same T
+
lstIE energy required to
:
1 mole of 1 mole of atoms ✗ → ✗ (g) + e-
from gaseous
o e-
remove
(g)
increases across
period ( f nuclear charge T attraction )
→
=
group (
→ deweese down further from nucleus to remove
)
e-
easy
=
a
'
✗ ✗
•
Eleitronaffinityi energy released when I mole of e- added to 1 mole gaseous atoms (g)
+ e- →
(g)
→
metaK-= A when e- added wacky attraction
#released
* =
→ n=higwr EA
0
Electronegativity : measure
of attraction an atom has for a shard pair of e- in covalent bonds
→ metals =
low *
increases across period t
deivaisedowngroup
→ nonmetals =
high
0
mtmgPits :
°
Metatticlharaiter
→ increase across
period until
group 14 then decrease → how easily an atom loses e- s
→ in metals
→ depends on
type of bonding ,
structure
, strength
→ increases down a
group
→ decreases across
period
PERRI DAINTY -
GROUPS : vertical column # is same as # valence e-
,
PERIOD :
horizontal row ,
# is same as # shells
⑥ ⑧ HIM * ⑥ TRIM %
o
Atomicradivs : distance from nucleus to outermost e-
*
increases down levels
→
group more
energy
→ decreases across *
attraction with more e- in same main level
period more
energy
o
I-oniad.us distance from nucleus
: to outermost e- in anion
→ + ions : decrease across period as more
protons and e- same
→
-
ions : same T
+
lstIE energy required to
:
1 mole of 1 mole of atoms ✗ → ✗ (g) + e-
from gaseous
o e-
remove
(g)
increases across
period ( f nuclear charge T attraction )
→
=
group (
→ deweese down further from nucleus to remove
)
e-
easy
=
a
'
✗ ✗
•
Eleitronaffinityi energy released when I mole of e- added to 1 mole gaseous atoms (g)
+ e- →
(g)
→
metaK-= A when e- added wacky attraction
#released
* =
→ n=higwr EA
0
Electronegativity : measure
of attraction an atom has for a shard pair of e- in covalent bonds
→ metals =
low *
increases across period t
deivaisedowngroup
→ nonmetals =
high
0
mtmgPits :
°
Metatticlharaiter
→ increase across
period until
group 14 then decrease → how easily an atom loses e- s
→ in metals
→ depends on
type of bonding ,
structure
, strength
→ increases down a
group
→ decreases across
period
