Atoms and Atomic theories

___________ are the smallest particles in an element.

• Protons

• Atoms

• Nucleus

• milk

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NGSS.MS-PS1-1

Chemist use letters of the alphabet as _________ for the elements.

• pictures

• colors

• symbols

What is the atomic number of this element?

• O

• 8

• 16

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NGSS.MS-PS1-1

How many protons does this element have?

• 16

• 8

• 0

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NGSS.MS-PS1-1

What is the atomic mass of this element?

• 13

• 26.982

• Al

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NGSS.MS-PS1-1

How many electrons does this element have?

• 13

• 27

• Al

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NGSS.MS-PS1-1

What is the name for the center of the atom where the protons and neutrons are located?

• Atomic weight

• Atomic number

• Nucleus

• Electron cloud

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NGSS.MS-PS1-1

What kind of charge do neutrons have?

• positive 
• negative
• neutral
• -3

Use your periodic table to answer the following question.

Which of the following atoms has 6 protons?

• Carbon (C)

• Silicon (Si)

• Sulfur (S)

• Argon (Ar)

Tags

NGSS.MS-PS1-1

Use your periodic table to answer the following question.

Which of the following atoms has 10 protons?

• Fluorine (F)

• Neon (Ne)

• Sodium (Na)

• Magnesium (Mg)

Tags

NGSS.MS-PS1-1