FINAL REVIEW ACTIVITY #1
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Draw a picture of the nuclear atom. Label the nucleus, where the protons, electrons and neutrons would be located. When
drawing the pic demonstrate the approximate size of the nucleus in relation to the size of your atom.
When an atom is written with subscripts and superscripts what do the numbers represent?
In Chlorine – 38 what does the number 38 represent?
How do you calculate the atomic mass of an atom?
Calculate the number of protons, electrons and neutrons for the following atoms.
Atom
Protons
Electrons
Neutrons
Mg
C
I
K
Se
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For the following figure:
A
B
C
a. LABEL: neutrons, protons, electrons, nucleus, + charge, - charge
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b. How many electrons does this atom have?
c. How many protons does this atom have?
d. How many neutrons does this atom have?
e. What is its mass #?
f. What element is this? How do you know? What value(s) did you use?
g. Is this particular atom the most common isotope of this element? How do you know?
Why are atomic masses on the Periodic table not whole numbers?
What is the difference between 2 isotopes of the same element? Use Nitrogen – 14 and Nitrogen – 16 to explain the
difference
Define element, compound and mixture.
What is the difference between an element and a compound?
What is the difference between a compound and a mixture?
Make two drawings to show the difference between a homogenous and heterogeneous mixture.
Distillation and Chromatography are used to separate components from what type of mixture?
Filtration is used to separate components from what type of mixture?
Identify the following as a chemical or physical change
a. Melting
e. Boiling
b. Rusting
f. Freezing
c. Corroding
g. Condensing
d. Decomposing
h. Changing color