Transcript Chapter 4.1.2 Jeopardy

Jeopardy
Particles
Fusion
Periodic
Table
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Atoms
Trends
Final Jeopardy
$100 Question from H1
What is an atom?
$100 Answer from H1
The smallest particle of an element?
$200 Question from H1
Why don’t atoms have an overall
electrical charge?
$200 Answer from H1
The number of positively charged protons is
equal to the number of negatively charged
electrons
$300 Question from H1
Why was it so hard for scientists to discover
the neutron?
$300 Answer from H1
Because neutrons do not have a charge
$400 Question from H1
In an atom, the nucleus contains most of
the_______ , but very little of the
atoms_________.
$400 Answer from H1
mass, volume
$500 Question from H1
Which scientist inferred that an atom’s positive
charge is clustered in the nucleus? How did he
support his theory?
$500 Answer from H1
Ernest Rutherford, through the Gold Foil
Experiment
$100 Question from H2
Protons have what kind of charge?
$100 Answer from H2
positive
$200 Question from H2
Which particles have about the same mass?
$200 Answer from H2
Protons and neutrons
$300 Question from H2
What unit is used for communicating the mass
of the particles of an atom?
$300 Answer from H2
Amu: atomic mass unit
$400 Question from H2
How is the atomic mass of an atom determined?
$400 Answer from H2
By adding the # of protons to the # of neutrons
$500 Question from H2
How is the Atomic # for an element determined?
Why doesn’t the atomic # for an element ever
change?
$500 Answer from H2
It is the # of protons in an atom of the element.
The # of protons in an atom of an element
never changes
$100 Question from H3
The sun is made up of mostly what element?
$100 Answer from H3
Hydrogen
$200 Question from H3
Briefly describe what happens during the
process of nuclear fusion.
$200 Answer from H3
Small nuclei combine(fuse) to form larger nuclei
$300 Question from H3
Where did our solar system’s matter, and the
elements that make it, originate?
$300 Answer from H3
A supernova, an explosion that broke apart a
massive star billions of years ago.
$400 Question from H3
In nuclear fusion two atomic nuclei combine
And what is also released?
$400 Answer from H3
Huge amounts of energy and neutrons
$500 Question from H3
Stars are composed of a gas-like mixture of
free electrons and atoms stripped of electrons
called what?
$500 Answer from H3
plasma
$100 Question from H4
Who first organized a useful periodic table?
$100 Answer from H4
Dmitri Mendeleev
$200 Question from H4
Columns in the periodic table are called what?
$200 Answer from H4
families
$300 Question from H4
How did Mendeleev organize his periodic table?
How did scientists later change this?
$300 Answer from H4
Mendeleev organized it by increasing atomic
mass.
Later scientists organized it by increasing
atomic number.
$400 Question from H4
Mendeleev’s periodic table was incomplete.
What did Mendeleev predict would happen
and did in?
$400 Answer from H4
Scientists discovered 3 new elements which
helped complete the periodic table.
$500 Question from H4
What information can be found in each square
of the periodic table?
$500 Answer from H4
An elements atomic number, symbol, name
and atomic mass.
$100 Question from H5
As you move from hydrogen to radon on the
periodic table what happens to the atomic
numbers of the elements?
$100 Answer from H5
They increase
$200 Question from H5
The elements in a period move in which direction
on the periodic table?
$200 Answer from H5
Right to left, horizontal rows
$300 Question from H5
Which group of elements react violently with
Group 1?
$300 Answer from H5
Group 17
$400 Question from H5
What can you say about the properties of
elements that are in the same family?
$400 Answer from H5
They have similar properties
$500 Question from H5
Describe what happens to the elements as you
move from right to left across the periodic table?
$500 Answer from H5
The properties of the elements will change
Final Jeopardy
Why did the model of the atom and
Mendeleev’s periodic table change?
Final Jeopardy Answer
New technology and knowledge gained
Through experiments allowed scientist
to make improvements to the models