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100

Smallest unit of an element

What is an atom?

100

center of an atom

What is an nucleus?
100

part of an atom that has no charge

What is neutron?

100

the creator of the periodic table 

Who is Dmitri Mendeleeve?

100

the letters on the periodic table represent

What is the atomic symbol?
200

a substance that chemical reactions cannot break down into something simpler

What is an element?

200

two or more atoms that are joined together 

What is a molecule?

200

Part of an atom that has a positive charge

What is proton?

200

The number of protons in an atom 

What is atomic number?

200

Au stands for

What is gold? 

300

element that has properties such as conductivity, flexibility, and shine.

What is a metal?

300

Part of an atom that has negative charge

What is electron?

300

The number of protons and neutrons added together

What is atomic mass? 

300

Name an element on the periodic table

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