5-The Periodic table includes 7 periods and 18 groups
true
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15
6-It is a column on the periodic table, where the atomic number of each element increases by eight from up to down.
Group ( family )
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thief
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5
10
15
20
25
seesaw
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fairy
Take points!
5
10
15
20
25
baam
Lose 15 points!
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15
8-The number of valence electrons in an atom equals the ones digit of the group number.
true
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15
14-The atom is chemically ....................if some of the dots are unpaired in Lewis structure so it can form .....................with another atom
unstable -bond
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trap
No points!
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rocket
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shark
Other team loses 20 points!
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lifesaver
Give 15 points!
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15
19-Oxygen atom has 4 valance electrons
False
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15
18-the number of unpaired electrons in fluorine is .........and the number of bond that can form is......... with another atom
one - one
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15
1-The vertical column on the periodic tableâĶâĶâĶâĶâĶâĶâĶâĶâĶâĶâĶâĶâĶâĶâĶ
Group
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lifesaver
Give 10 points!
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seesaw
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shark
Other team loses 25 points!
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thief
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5
10
15
20
25
15
2-------------the horizontal rows in the periodic table
Period
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15
13-The atom is chemically ..................if all dots are paired in Lewis structure
stable
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15
11-Is a simple way to show how the valence electrons are arranged in the outer shell.
electron dot diagram ( Lewis structure )
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15
4-The valence electrons of the atom participate in chemical bonding.
True
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15
12-in Lewis structure, valence electrons are put as Dots one-by-one around the element's symbol
true
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15
9-The no. of valence electrons for 15 is..............
