Transcript Bell Ringer

Bell Ringer
1. What element is located at period 4 group 8?
2. What element has 45 protons?
3. What period and group is Iron located in?
Isotopes
Integrated Science
Isotopes
Atoms of the same element with different
numbers of neutrons.
If they have different numbers of neutrons then
they have different mass numbers.
Examples
Find the number of protons,
neutrons, and electrons for each.
How to name isotopes!!
Carbon-12
Carbon-14
12 is the mass number
14 is the mass number
How many protons,
neutrons, and electrons
does Carbon-12 have?
How many protons,
neutrons, and electrons
does Carbon-14 have?
More examples
Chromium-58
1. Mass number is ________
Chromium-63
1. Mass number is ________
2. Find the number of
protons, neutrons, and
electrons for Chromium-58?
3. Draw this isotope.
Protons (+), Neutrons (o),
Electrons (-)
2. Find the number of
protons, neutrons, and
electrons for Chromium-63?
3. Draw this isotope.
Protons (+), Neutrons (o),
Electrons (-)
Practice
On your marker board, finish this table and draw
the isotope.
Silver- 111
# of protons
Silver-120
47
# of neutrons
# of electrons
47
Practice
On your marker board, finish this table and draw
the isotope.
Tin- 122
# of protons
# of neutrons
# of electrons
Tin-131
Worksheet
You have the rest of the class to
work on this worksheet.
If you do not finish in class it is
homework.