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Periodic Table Reveiw Flashcards | StudBud
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Periodic Table Reveiw
Periodic Table Reveiw
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Periodic Table Review
Flashcards
25 cards
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Questions
25
Answers
1
What do the atomic numbers represent?
number of atoms
number of neutrons
number of protons
Atomic Mass
2
Which property would be most useful in placing a new discovered element in Group 18?
nonreactivity
malleability
conductivity
reactivity
3
Which elements are most likely to have similar density?
elements in the same period
elements with the same state at room temperature
elements in the same group
elements with the same atomic mass
4
Which best describes a row of elements in the periodic table?
family
period
column
group
5
In which area of the periodic table would the elements with the highest density be found?
Group 1 on the periodic table
the top of the group
the middle of the periodic table
6
How are elements on the periodic table organized by their properties?
in groups
in periods
by mass
7
Which best explains how elements are arranged on the modern periodic table?
Elements are arranged from fewest neutrons to most neutrons.
Elements are arranged from fewest protons to most protons.
Elements are arranged from most protons to fewest protons.
8
What best describes the reactivity of alkali metals?
Reactivity increases down a group.
Reactivity decreases left to right across a period.
Reactivity increases left to right across a period.
9
Elements that are shiny, malleable, ductile,& good conductors of heat & electricity are called?
metalloids
metals
halogens
non-metals
10
What physical property is characteristic of all of the elements in Group 18?
extremely brittle solid at room temperature
gas state at room temperature
good conductor of electric current
very high melting point
11
Which property is unique for each element?
Period number
State of matter
Group number
Atomic number
12
Non-metals are located on what side of the Periodic Table?
Right
Middle
Left
13
In which groups did Mendeleev most likely place highly-reactive elements?
Group 18
Group 2
Group 17
Group 1
14
If an element has no electrons to share and is stable, what family is it found in?
Noble Gases
Metalloids
Alkali Metals
Non-Metals
15
Why is Hydrogen, a non-metal, placed in group 1?
It has the same number of electrons as elements in group 1
It reacts similarly as elements in group 1
It has a similar atomic mass as elements in group 1
It has the same number of protons as elements in group 1
16
Sodium reacts with water. Which element is most likely to have a similar effect?
carbon
lithium
aluminum
oxygen
17
Which elements are most likely to react in the same manner in a chemical reaction?
elements with the same state
elements with similar atomic masses
elements in the same period
elements in the same group
18
Which group contains elements with the most varied properties?
noble gases
transition metals
alkali metals
alkali earth metals
19
Which element has 7 valence electrons?
lead (Pb); group 14
hydrogen (H); group 1
fluorine (F); group 17
20
Which of these is one similarity of the elements in the first group of the periodic table?
The elements in the group have similar atomic masses.
The elements in the group are very unreactive metals.
The elements in the group have the same number of electrons.
The elements in the group react with oxygen in similar ways.
21
Why are certain elements placed into the same column on the periodic table?
They have the same number of protons in their nuclei.
They have the same number of valence electrons
They have the same number of electrons in their nuclei.
22
What is the significance of metalloids in the periodic table?
They separate metals from nonmetals.
They combine elements and compounds.
They separate liquids from solids.
23
Where are the most reactive nonmetals located on the periodic table?
the second column from the right side of the table
the column at the far left side of the table
the rows at the bottom of the table connecting two sections
the uppermost complete row of the table
24
What particle in an atom determines its chemical reactivity?
electrons
protons
neutrons
25
Where are the most reactive metals located on the periodic table?
the rows at the bottom of the table connecting two section
the second column from the right side of the table
the uppermost complete row of the table
the column at the far left side of the table
