Atomic Structure - Rapid Review
Presentation
•
Science
•
9th Grade
•
Practice Problem
•
Easy
+9
Standards-aligned
Kyle Sheahon
Used 6+ times
FREE Resource
6 Slides • 7 Questions
1
Atomic Structure Rapid Review
Identify the parts and location of the subatomic particles.
Explain the roles of the subatomic particles.
Count the number of subatomic particles for any element.
2
3
Labelling
Label the atom.
proton
neutron
electron
nucleus
electron cloud
4
Categorize
+1 charge
determines atomic number
positively charged particle
0 charge
neutral particle
-1 charge
found in electron cloud
mass of approximately 0.0005 amu
negatively charged particle
participates in chemical reactions
p+
n0
e-1
Organize these options into the right categories
5
Tells you how many protons are in the nucleus.
Unique to each element.
Will always be the smaller of the two, may not always be on the bottom.
In a NEUTRAL atom, the atomic number also tells you the # of electrons.
Atomic Number
6
Mass Number, or the atomic mass unit, tells you the mass of the atom.
Includes all the protons and all the neutrons added up.
Always the larger number.
Mass Number (amu)
7
Because there are different types (or isotopes) of the same element, the mass is an average.
Average atomic mass is usually written as a decimal.
Round this number to the nearest whole number to find the Mass Number.
Often simply referred to as atomic mass.
Average atomic mass
8
Math Response
What is the mass number for phosphorus?
9
Match
Select the correct number of subatomic particle based on the nuclear symbol for Fluorine.
# of protons
# of neutrons
# of electrons
9
10
9
9
10
9
10
Labelling
Label the nuclear symbol for Helium by dragging the label underneath the arrow.
atomic number
average atomic mass
chemical symbol
11
Labelling
Label the nuclear symbol for Helium by dragging the label underneath the arrow.
average atomic mass
atomic number
element name
chemical symbol
12
Three ways we can represent an atom.
Bohr model of Carbon
Nuclear symbol of Carbon
carbon-12
Hyphen Notation for Carbon
13
Match
Match the types of representation for Nitrogen.
nitrogen-14
Bohr Model
Hyphen notation
Nuclear Symbol
Bohr Model
Hyphen notation
Nuclear Symbol
Atomic Structure Rapid Review
Identify the parts and location of the subatomic particles.
Explain the roles of the subatomic particles.
Count the number of subatomic particles for any element.
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