Name
Date
Elementsand the PeriodicTable '
GuidedReadingand Study
Class
Du.fa esdb'y /t'/f
€haElemaffits
GrgenizEng
areorganized
Thissectionexplainshou:theelements
in a chartcalledtheperiodic
table.It alsoexplainsushatinformationtheperiodictablecontains.
Fattenns
in the Elennents
1. What did Dmitri Mendeleev discover :g:11869?
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2. What is the atomic mass of an element?
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3. Mendeleev noticed that patterns appeared when he arranged the
eiements in what way?
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4. Is the following sentencetrue or false?Mendeieev also grouped
elements that had similar properties.----------------
blank
5. Mend.eleev's periodic table had
not
yet
been
that
had
spacesleft in it, which represented elements
discovered.
6. What does the word periodic mean?
7. A chart of the elementsshowingthe repeatingpaftem of their properties
is called the
8. The modem periodic table is now arranged according to
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+r
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(u
LU
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(1k,
FindingDataon Elec'fients
9. The atomicnumber for the elementcalcium (Ca)is 20.How many
protons and elecfronsdoeseachcalciumatom have?
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10. A one- or two-letter representation of an element is called a(n)
11. Use the squarefrom the periodic table to fill in the blanksbelow.
a. Name of element:
b. Chemical symbol:
c. Atomic mass:
d. Atomic number:
50
Sn
Tin
118.69
12. Hbw canan element'spropertiesbe predicted?
13. Each horizontal.row in the periodic table is called
a(n)
L4. Is the following sentencetrue or false?Acrossa period from left to right,
the propertiesof elementschangeaccordingto a
pattern.
15. Cirde the letter of eachterm that refersto elementsin a coiumn of the
periodic table.
a. period
b. family
c. grouP
d. s'irmbol
16. Group L5 of the periodic table is the
family.
17. Cirdetheletterof thestatement
thatis true aboutelements
in each
group.
a.
b.
c.
d.
They all have the sameatomicmass.
They all have similar characteristics.
They all have similar atomicnumbers.
They all have the samechemicalsymbol.
d
E