isotope

1. One of two or more atoms having the same atomic number but different mass numbers.

2. Any of two or more species of atoms of a chemical element with the same atomic number and nearly identical chemical behavior but with differing atomic mass or mass number and different physical properties.

3. Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

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Top Words by points	Points	Word Game
isotope	9	Scrabble

2 Letters	Scrabble® Points
et	2
po	4
pi	4
pe	4
to	2
ti	2
te	2
es	2
si	2
os	2
op	4
oe	2
so	2
oi	2
it	2
is	2

3 Letters	Scrabble® Points
poo	5
pos	5
pot	5
psi	5
pst	5
too	3
sop	5
sit	3
sip	5
toe	3
tis	3
tip	5
tie	3
tes	3
set	3
sei	3
sot	3
pit	5
oes	3
ope	5
oot	3
its	3
ops	5
opt	5
ose	3
est	3
poi	5
top	5
pes	5
pet	5
pie	5
pis	5

4 Letters	Scrabble® Points
pots	6
sept	6
sipe	6
topi	6
topo	6
tops	6
site	4
soot	4
spit	6
spot	6
step	6
stop	6
tope	6
toes	4
tips	6
ties	4
opes	6
pets	6
pies	6
piso	6
pits	6
poet	6
pois	6
poos	6
pest	6
peso	6
opts	6
oots	4
pose	6
post	6
oops	6
epos	6

5 Letters	Scrabble® Points
topos	7
estop	7
topes	7
topis	7
topoi	7
stope	7
stoop	7
stipe	7
spite	7
pesto	7
piste	7
poets	7
poise	7
posit	7

6 Letters	Scrabble® Points
sopite	8
otiose	6
postie	8
potsie	8

7 Letters	Scrabble® Points
isotope	9