Download Isotopes - Katella HS

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Dubnium wikipedia, lookup

Moscovium wikipedia, lookup

Periodic table wikipedia, lookup

Neptunium wikipedia, lookup

Einsteinium wikipedia, lookup

Livermorium wikipedia, lookup

Promethium wikipedia, lookup

Chemical element wikipedia, lookup

Tennessine wikipedia, lookup

History of molecular theory wikipedia, lookup

Isotope analysis wikipedia, lookup

Isotopic labeling wikipedia, lookup

Ununennium wikipedia, lookup

Unbinilium wikipedia, lookup

Transcript
Isotopes
Same but different
Students will be able to identify # of
subatomic particles in isotopes.
Same but different?
 Pre-1982 penny =
3.11 g
 Post-1982 penny =
2.55 g
 Same coin…why?
 Inside different:
Pre-1982 all Cu
Post-1982 Zn & Cu
Pennies vs Isotopes
 Both kinds have
same identity
 Both have different
masses because the
insides are unique
 Unlike pennies
atoms are too small
to see
Isotopes
 Atoms with the same
# of protons but
different # of
neutrons
 Atomic # = # protons
(identity)
 Atomic mass =
protons & neutrons
in the nucleus
electron
neutron
proton
Isotopic Notation
Mass # = protons + neutrons
33
How many:
Protons? (atomic #)
S
16
Atomic #: if not given-look it up!
Neutrons?(mass # - atomic #)
Electrons? (neutral atoms)
protons = electrons
Who am I?
 An atom that
contains 14 protons?
 An atom with 10
protons?
 An atom with an
atomic number of
98?
Isotopes of Silver
 Silver – 107
 Silver – 109
Mass Number
 # protons?
 # neutrons?
 # electrons?
 # protons?
 # neutrons?
 # electrons?
Isotopes of Silver
 Silver – 107
 Silver – 109
 # protons? 47
 # neutrons? 60
 # electrons? 47
 # protons? 47
 # neutrons? 62
 # electrons? 47
Isotopes: Same # of protons, different #
neutrons (mass numbers differ)
To do list:
 HW #7: p. 872-3 (chapter 4) #1-6; p. 113 #72
 HW #8 & Power word examples (both
columns) will be turned in on Wednesday.
Arrange to check answers before test day!
 All homework makeups due by Wednesday.
 Makeup instructions and files on dropbox.com
 Login: [email protected]
 PW: molecule
 HW stamp sheet and notes due Thursday!