Mr. Greco TeacherWeb Update The Periodic Table of Elements

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Question 1

Answer 1
repeating, according to some pattern.
Question 2

Answer 2
metals.
Question 3

Answer 3
14 (Silicon)
Question 4

Answer 4
metals, metalloids, and nonmetals.
Question 5

Answer 5
characteristics of nonmetals.
Question 6

Answer 6
shiny.
Question 7

Answer 7
break easily.
Question 8

Answer 8
groups or families.
Question 9

Answer 9
periods.
Question 10

Answer 10
above and below the staircase.
Question 11

Answer 11
The periodic table contains 7 periods and 18 groups.
Question 12

Answer 12
atomic number (which tells the # of protons).
Question 13

Answer 13
highly reactive and some are explosive so in nature they are usually only found with other elements in the form of a compound.
Question 14

Answer 14
brightly colored compounds.
Question 15

Answer 15
active nonmetals.
Question 16

Answer 16
Silicon (Si)
Question 17

Answer 17
similar physical and chemical properties.
Question 18

Answer 18
Metals -> Metalloids -> Nonmetals
Question 19

Answer 19
The word malleable means it can be hammered into thin sheets. Au is the symbol for gold which is a metal and it is very malleable. Zn is the symbol for zinc which is a metal and it is very malleable. Cu is the symbol for copper which is a metal and it is very malleable. C is the symbol for carbon which is a nonmetal and it is not malleable.
Question 20

Answer 20
Group 17. For example Sodium (Na) of Group I forms a compound with Chlorine (Cl) of Group 17 and the compound is Sodium Chloride (NaCl).
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