Atomic Structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

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NGSS.MS-PS1-1

Subatomic particles with a positive charge

• neutrons

• atomic mass

• protons

• isotopes

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NGSS.MS-PS1-1

An atom with a charge due to too many electrons or too few electrons is called an ________.

The smallest particle of an element that shows all the properties of that element is called an _________.

A tiny but very dense, positively charged portion of the atom that holds protons and neutrons.

• Electron Shells

• Orbitals

• Electron Cloud

• Nucleus

Which subatomic particle determines the type of element?

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NGSS.MS-PS1-1

The atomic mass of an atom is equal to? Hint: Look at the scale in the picture.

• number of protons plus number of neutrons

• number of protons plus number of electrons

• number of electrons plus the number of neutrons

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NGSS.MS-PS1-1

What two subatomic particles must be equal for an atom to have no charge (neutral)?

• protons and neutrons

• protons and electrons

• electrons and neutrons

Outside the nucleus of an atom you will find which subatomic particles?

• protons

• neutrons

• quarks

• electrons

Tags

NGSS.MS-PS1-1

What does the atomic number "4" in Be represent?

• Number of protons in a Be atom

• Number of neutrons in a Be atom

• Mass of a Be atom

• Charge on a Be atom

Tags

NGSS.MS-PS1-1