The elements in a row of the periodic table

have properties that change in a pattern.

In the periodic table, the most reactive metals are found

in Group 1, the first column on the left.

Why is it difficult to determine the chem. & phys. prop. of a newly discovered synth. element?

The element’s nuclei would break apart very quickly.

How did chemists change Mendeleev’s periodic table in the early 1900s?

They used at, # instead of at. mass to organize the elements

Because atoms are so small,

scientists create models to describe them.

Which of the following statements about transition metals is true?

They include metals such as gold, silver, copper, & nickel.

In general, which of the following statements about metals is true?

Metals show a wide range of chemical properties.

Which of these statements about a column of the periodic table is true?

The elements have similar properties.

What prediction did Mendeleev make that came true less than 20 years later?

He said that 3 new ele. would be dis., & he des. their prop.

A material is said to be ductile if it

can be pulled out, or drawn, into a long wire.

The atomic number of an element is based on the

number of protons in its nucleus.

How does nuclear fusion create new elements inside stars?

Small nuclei combine to form larger nuclei.

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Physical Science Periodic Table Review

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Questions 30

Answers

1
The elements in a row of the periodic table
have the same average atomic mass.
are in the same family.
have properties that change in a pattern.
have the same or nearly the same properties.
2
In the periodic table, the most reactive metals are found
in Groups 13 through 16 in the center.
in Group 1, the first column on the left.
in Period 1, the first row across the top.
in Periods 6 and 7 at the bottom.
3
The sun is made up mostly of
carbon.
hydrogen.
iron.
beryllium.
4
Why is it difficult to determine the chem. & phys. prop. of a newly discovered synth. element?
The ele. would combine the prop. from which it was made.
The element would not fit in the periodic table.
The element’s nuclei would break apart very quickly.
The element would lack many properties of ordinary elements.
5
How did chemists change Mendeleev’s periodic table in the early 1900s?
They included phys. prop. such as melting point & density.
They used at. mass instead of at. # to organize the elements
They used at, # instead of at. mass to organize the elements
They included chemical properties such as bonding power.
6
Because atoms are so small,
there is no way to describe them.
they cannot be synthesized by scientists.
they cannot be made of smaller particles.
scientists create models to describe them.
7
From an element’s location in the periodic table, you can predict
its properties.
when it was discovered.
its chemical symbol.
its chemical name.
8
Which group of elements shares characteristics with both metals and nonmetals?
metalloids
halogens
alloys
salts
9
Which of the following statements about transition metals is true?
They are so soft that they can be cut with a knife.
They are the most reactive of all the types of metals.
They are never found uncombined in nature.
They include metals such as gold, silver, copper, & nickel.
10
Fluorine, chlorine, bromine, and iodine are part of a family called
alkali metals.
metalloids.
noble gases.
halogens.
11
Which particles in atoms have a negative electric charge?
protons
neutrons
nuclei
electrons
12
Mendeleev created the first periodic table by arranging elements in order of
decreasing atomic mass.
increasing atomic mass.
increasing atomic number.
increasing melting points and densities.
13
Which parts of the atom move around the nucleus?
neutrons
protons
electrons
atomic mass units
14
At room temperature, more than half of the nonmetal elements are
gases.
liquids.
solids.
alloys.
15
To make most synthetic elements, scientists use powerful machines called
supernovae.
particle accelerators.
semiconductors.
nebulas.
16
In general, which of the following statements about metals is true?
Metals are highly reactive substances.
Metals show a wide range of chemical properties.
Metals do not react with oxygen.
Metals need to be stored in sealed containers for safety.
17
Which prop. of bromine could you NOT predict based on that it is a nonmet. in the hal. family?
liquid at room temperature
poor conductor of heat
poor conductor of electricity
highly reactive
18
Most metals are NOT
liquid at room temperature.
good conductors of heat and electricity.
ductile.
malleable.
19
Which of these statements about a column of the periodic table is true?
The elements have the same atomic mass.
The elements have similar properties.
The elements have the same atomic number.
The elements have a wide range of properties.
20
The elements in a column of the periodic table
have the same atomic mass.
are in the same period.
have similar properties.
have very similar chemical symbols.
21
The two most common alkaline earth metals are
copper and zinc.
calcium and magnesium.
sodium and potassium.
iron and silver.
22
What prediction did Mendeleev make that came true less than 20 years later?
He said that the per. table would be dev. into 18 families.
He said that 3 new ele. would be dis., & he des. their prop.
He predicted the atomic numbers of unknown elements.
He pred. that a total of 112 elements would be discovered.
23
A material is said to be ductile if it
can be hammered or rolled into flat sheets and other shapes.
is a mixture of a metal with at least one other element.
can transfer heat or electricity to another material.
can be pulled out, or drawn, into a long wire.
24
What information in the periodic table indicates the number of protons in an atom?
the element’s atomic number
the position of the element in its column
the element’s chemical symbol
the element’s atomic mass
25
In an atom, the number of protons equals the number of
neutrons
electrons
nuclei.
isotopes.
26
The atomic number of an element is based on the
number of neutrons in its nucleus.
mass of its nucleus.
number of protons in its nucleus.
number of electrons around its core.
27
How does nuclear fusion create new elements inside stars?
Small nuclei cause large nuclei to break apart.
Small nuclei combine to form larger nuclei.
All the nuclei repel each other because of their + charges.
Large nuclei combine, then form smaller nuclei.
28
The elements that do not ordinarily form compounds are
elements in the carbon family.
noble gases.
metals.
halogens.
29
What event provides enough energy for the nuclear fusion that create the heaviest elements?
a particle accelerator
a plasma
a supernova
a nebula
30
Which group contains the most elements?
nonmetals
transition elements
metalloids
metals

Physical Science Periodic Table Review Flashcards | StudBud