Elements and Basic Structure of an Atom

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10 Terms

1
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How small is an atom?

100,000,000 copper atoms side by side would be 1cm long.

2
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Is matter full space or empty space?

It is empty space.

3
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What is an Element Name?

Type/class of atoms, defined by the number protons.

4
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What is an Atomic Number?

The number of protons.

5
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What is an Element Symbol?

An abbreviation of an elements name (Always begins with capital letter).

6
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What is an Average Atomic Mass?

The number of protons and neutrons added together (both are around 1 amu).

7
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What is an atom made of?

Protons (+), Neutrons (0), and Electrons (e/e-).

8
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What is between the space of the nucleus and electrons?

The electron cloud.

9
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What is the nucleus made of?

Protons (+), and Neutrons (0).

10
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Is the nucleus the lightest or heaviest part of the atom?

It is the heaviest part of the atom (it’s also the smallest)