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Elements of the Periodic Table Flashcards | StudBud
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Elements of the Periodic Table
Elements of the Periodic Table
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review of elements and periodic table structure #periodictable
Flashcards
25 cards
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Questions
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Answers
1
Which group contains the most elements?
metals
non-metals
transition elements
metalloids
2
Which particles in atoms have a negative electric charge?
neutrons
electrons
protons
nucleus
3
What is an isotope?
an atom with different numbers of neutrons and electrons
an atom with a different number of protons than its neutrons
an atom with a different number of electrons than protons
atoms with same # protons, different # neutrons
4
Which of the following are common properties of all metals?
Conducts Electricity
Loosely held electrons
Ductile and Malleable
All of these
5
Mendeleev had enough insight into the nature of the periodic table so that he:
formed rows of elements with similar properties
discovered the concept of atomic mass
left spaces for elements not yet discovered
used cards to label all the known elements
6
The elements in a column of the periodic table ____.
have similar chemical symbols
are in the same period
have similar properties
have the same atomic mass
7
How many electrons are in the outer shell of Alkaline Earth Metals?
3
can't tell
2
1
8
The sun is made of mostly what element?
carbon
hydrogen
oxygen
iron
9
What is unique about noble gases?
They are metalloidic
exist as solid elements
form salts
Are non-reactive
10
How does the atomic mass of the elements change as you move from top to bottom on the table?
Mass decreases
Mass increases
no idea
Stays the same
11
What is a significant problem with the picture of the Atom shown below?
A "cloud" model for the electron is more accurate
Electrons are not particles following an orbital path
The size scale is all wrong (electrons should be much farther away)
all of these are correct
12
Mendeleev created the first periodic table by first arranging the elements in order of _____.
decreasing atomic mass
increasing atomic mass
increasing melting points and densities
increasing atomic number
13
Which of the following statements about transition metals is true?
They include metals such as gold, silver and copper
They are so soft they can be cut with a knife
They are never found uncombined in nature
They are the most reactive of all types of metals
14
Which of the following is NOT a property common to non-metals?
dull
reactive with other elements
conduct electricity easily
brittle
15
In a neutral atom, the number of protons equals the number of ____.
electrons
isotopes
nuclei
neutrons
16
The elements that do not ordinarily react to form compounds are ______.
halogens
noble gases
elements in the carbon family
metals
17
How does the Ionization Energy of metals change as you move from left to right on the table?
it decreases
No idea
it doesn't change
it increases
18
Sodium has 11 protons, 12 neutrons and 11 electrons. What is it's atomic number?
12
23
22
11
19
Why would it be difficult to determine the properties of a new synthetic element with an atomic number greater than 118?
The element would lack properties of ordinary elements
The element's nuclei would break apart very quickly (would be radioactive)
The element would not fit in the periodic table
The element would not have a name
20
Sodium has 11 protons, 12 neutrons and 11 electrons. What is it's mass number?
12
23
11
22
21
Fluorine, chlorine, bromine and iodine are part of a family called _____.
metalloids
alkali metals
halogens
noble gases
22
Which group of elements share characteristics with both metals and non-metals?
salts
metalloids
halogens
lanthanides
23
Where would you find the most active metal (loosest held electrons)?
Lanthanide series
Noble gas column
upper right
lower left
24
What information in the periodic table indicates the number of protons in an atom?
the position of the element in the column
the element's chemical symbol
the element's atomic mass
the element's atomic number
25
A material is ductile if it _____.
is a mixture of metal with at least one other element
can transfer heat or electricity to another metal
can be pulled or drawn into a long wire
can be hammered or rolled into flat sheets
