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Periodic table and Elements Flashcards | StudBud
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Periodic table and Elements
Periodic table and Elements
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Review Periodic table and elements
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
How many neutrons does sodium have?
23
11
12
2
which is a chemical property?
mass
odor
reacts with...
3
The family /group tells you ?
the number of valences electrons
number of shells
you name
4
How many electrons can the second energy level hold?
3
8
2
5
Identify a physical property:
color
radioactivity
toxicity
6
what is the atomic mass of sodium?
23
11
12
7
This is a gas at room temperature, and its atoms have six electrons in their outer shell.
flourine
nitrogen
oxygen
8
An element that is not reactive at all belongs to ( mean they are happy)
noble gases ( group # 18)
Halogens ( group # 17)
9
How many Electrons does sodium have?
11
23
12
10
What is Mrs. Salmon's favorite chocolate?
twix
peanut butter cups
all of the above
11
Why are the Noble gases happy and do not react with other elements?
their outer shells are full
their outer shells are not full
12
Most of the elements on the periodic table are
gas
metalloids
nonmetals
metal
13
How many electrons can the third energy level hold?
7
6
8
14
The element _________ is an alkaline earth metal and has 2 valence electrons.
Magnesium, Mg
Silicon, Si
15
How many valence electrons does Na have?
1
3
2
16
How many electrons can the first energy level hold?
3
2
8
17
How many valence electrons does Fluorine have?
7
6
5
18
How many protons does Sodium have?
23
11
12
19
what is the atomic number of sodium
12
23
11
