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Periodic table Flashcards | StudBud
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Periodic table
Periodic table
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End of unit chem
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Where are the noble gases?
Group 2
Group 18
Group 1
Group 17
2
Where on the periodic table do you find the most reactive metals?
Group 2
Group 18
Group 17
Group 1
3
The vertical columns on a periodic table are called _________________________
Periods
Groups
Rows
Familes
4
What family does calcium belong to?
Alkali metals
Alkaline earth metals
Noble gases
Halogens
5
What do the subscripts represent?
Number of atoms of each element
Number of valance electrons
Mass of each element
total number of bonds made by each atom
6
A ______________________ speeds up a chemical reaction.
activation energy
mad scientist
catalyst
inhibitor
7
How many valence electrons does Mg have?
1
7
2
6
8
A chemical reaction that breaks down one compound into new compounds is a ...
synthesis reaction
decomposition reaction
precipitate reaction
replacement reaction
9
An ionic bond is usually formed between
two nonmetals
a metal and a nonmetal
all of the above
two metals
10
Every atom of a given element has the same number of
ions
protons
neutrons
electrons
11
According to the graphic below, how many valence electrons does Nitrogen have?
5
3
4
2
12
Which of the following is not a characteristic of a metal?
It is malleable
It will give away electrons
It will gain electrons
It is a poor conductor
13
What elements chemical symbol is S?
Sulfate
Silicon
Sulfur
Sodium
14
A chemical reaction that gives off heat is likely to be a...
endothermic reaction
synthesis reaction
decompostion
exothermic reaction
15
What is an ion?
An element with no neutrons
An atom that loses or gains one or more electrons
An atom with the same number of protons and neutrons
An element with the same number of protons and electrons
16
What is a compound?
Two elements which can be physically separated
THe ratio of elements and atoms in a comound
Two or more elements chemically combined
A group of atoms combined
17
Which of the following is an example of a covalent bond?
Calcium Oxide
Water
Calcium Chloride
Magnesium Bromide
18
A chemical reaction in which two elements recombine to form a new compound is a...
replacement
precipitation
synthesis
decomposition
19
Why are the gases in group 18 called noble gases?
They have a full shell of protons
They have a full outer shell of electrons
They are reactive
They are royalty
20
What type of reaction absorbs energy?
decomposition
synthesis
endothermic
exothermic
21
What is the chemical symbol for lead?
L
Le
Pb
P
22
What are the horizontal rows on the periodic table called?
Periods
Columns
Groups
Families
23
What does an element's location on he periodic table help you predict?
its chemical name
its chemical symbol
its properties
how many neutrons it has
24
The elements that do not ordinarily form compounds are
.. in the carbon family
noble gases
metals
halogens
25
Which of these is not a property of a metal?
ductile
shiny
not a good conductor
good conductor
26
In an ionic compound what element is listed first?
The positively charged ion
The negatively charged ion
27
How many valence electrons does an element in group 16 have?
4
5
7
6
28
Which of the following is a property of a non metal?
ductile
malleable
good conductor of electricity and heat
brittle
29
How many neutrons does the following element have?
6.94
7
3
4
30
What element has 3 protons and 3 neutrons?
Hydrogen
Lithium
Calcium
Helium
31
To balance a chemical equation you must change the .....
sibscripts
products
coeeficients
reactants
32
What is the atomic mass of the following element?
6
12
12.01
33
What is the charge of the ion if an atom loses 2 e-
there is no charge
- 2
+ 2
34
Which of the following is the number of elections on the outer shell for Chlorine (group 17)
6
8
7
5
35
What is the minimum amount of energy needed to start a chemical reaction?
inhibitor
a lot
activation energy
catalyst
