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Periodic Table Table Flashcards | StudBud
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Periodic Table Table
Periodic Table Table
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A way to review important information for an upcoming 8th grade science test :)
Flashcards
15 cards
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Questions
15
Answers
1
How many elements are in the compound NaHCO
3
?
4
10
5
6
2
How many hydrogens are in the following compound 2NH
4
OH?
5
10
2
idk
3
What is the difference between a compound and a mixture?
Compound can be physically separated
Mixture can be physically separated
Compound is chemically bonded
Mixture is chemically bonded
4
What are valence electrons?
Electrons within the nucleus
Electrons that leave the shell
Electrons in the outermost shell
Electrons that don't exist
5
On the Periodic Table, what is a row called?
Valence
Isotope
Period
Family
6
Which is not a chemical property?
Density
Combustability
Reactivity
Flammability
7
Which of these are pure substances?
Compound
Element
Mixture
8
True or False? A change in size or shape is a physical change.
True
False
9
The number of _______ an element has, makes it unique and different from every other element.
protons
quarks
neutrons
electrons
10
Which element is in the same period as sodium (Na) and in the same group as iodine (I)?
Flourine
Sodium
Chlorine
Talc
11
True or False? An example of a chemical change is when water freezes.
False
True
12
Water, sugar and lemon mixing to form lemonade is an example of a...
chemical change
physical change
13
Chlorine is in the same period as...
Magnesium
Carbon
Gold
Helium
14
For a compound to be organic, it must contain...
Hydrogen
Carbon and Hydrogen
Carbon
Carbon and Helium
15
On the periodic table, a column of elements is called a
valence
period
isotope
family