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Periodic Table

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Cecile Heidenreich

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2y ago
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Cards in this guide (13)
Where are the noble gases located on the periodic table

The far right column.

Which of the following is the best example of an open system

an anthill

What did Henry Moseley determine that contributed to understanding the atom

The correct answer is: That each element has a different number of protons....

Chris Ellis

What did Rutherford discover that Thomson did not understand

That most of an atom's mass was packed in a central nucleus

What did John Dalton publish

An early theory describing properties of atoms

Which group has different numbers of valence electrons

Transition metals.

What is a reason an engineer may choose to use a prefabricated building component

She wants to use standard materials to minimize negtive environmental impacts

What does adding a neutron to an atoms nucleus do to the atoms mass

we can not add neutron

How were the elements arranged on his periodic table

Elements are arranged in the order of increasing atomic number in the modern periodic table.

How many valence electrons does B boron have

Boron has 3 valence electrons.

What period is Pb in

How have chemists used the periodic table over time

What period is Zn (zinc) in

12

An engineer chooses to use a composite material that incorporates concrete and recycled glass for the floors of a new building. This is an example of

Green design

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