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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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Questions
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Answers
1
Groups go up and down in columns and are also called families.
True
False
2
Which way do periods go?
in circles
upside down
up and down
across
3
Which has the same number of orbitals or shells?
groups
families
valence electrons
periods
4
The periodic table is mostly metals.
True
False
5
The red outside electron is called what?
proton
shell
Bohr model
valence electron
6
Which has similar properties and reactions?
Be and Mg
Cu and Ag
Na and K
all thee above
7
About how many elements are on the periodic table?
300
158
118
58
8
5H
2
O is how many molecules of water H
2
O?
3
5
10
2
9
The periodic table was made over a long period of time?
False
True
10
Which side is the least reactive?
left side group 1
middle group 9
left side period 3
right side group 18
11
Which number is the atomic number?
11
22.99
all thee above
2
12
What is another name for a shell?
nucleus
valence electron
proton
orbital
13
Which has similar properties and reactions to other elements?
H and He
Li and Be
Na and Mg
H and Li
14
How many valence electrons does group 2 have?
2
1
4
0
15
The noble gases are in group 18 and are nonreactive because they have 8 valence electrons.
no
never
false
true
16
What does the 2 stand for?
Protons
mass
electrons
atomic mass
17
Which group is more reactive, 1 or 5?
1 because it is on the right side
1 because it is on the left side
5 because it is on the left side
5 because it is on the right side
18
The brown ladder on the right side of the periodic table has what?
It is not on the periodic table
pizza
both metal and nonmetal properties
air
19
Which one has the same number of valence electrons?
Periods
elements
Groups
periodic table
20
ALL items in the periodic table are what?
mixtures
compounds
new
elements
