Atom Structure

Matter

• Anything that has

mass and takes up
space (has volume)

• Made up of different

kinds of atoms

Matter

• Includes all things

that can be seen,
tasted, smelled, or
touched

• Does not include

heat, sound, or light

matter

atoms

subatomic

protons

electrons

neutrons

Multiple Select

Which of these are subatomic particles

• Proton

• Neutron

• Electron

• Cell

• Organelle

Matter is made of atoms

Atomic Structure

• Nucleus

• Protons
• Neutrons

• Electrons

Electron Cloud

Around the Nucleus
Full of empty space

Electrons

• Tiny, very light particles
• Electron AMU = 0.0005
• negative electrical charge (-)
• Move around the outside of the nucleus

Multiple Choice

• Protons
• Neutrons
• Electrons

Multiple Choice

• Positive, electron cloud
• Neutral, nucleus
• Negative, electron cloud
• Negative, nucleus

Nucleus

• Contains most of the mass of the atom

Inside the Nucleus

Protons

• Much larger and heavier than electrons
• Amu = 1.007
• positive charge (+)

> Identifies the atom

Neutrons

• Large and heavy like protons
• no electrical charge (Neutral)
• AMU = 1.009

Multiple Choice

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

Multiple Choice

What number indicates an electron?

• 1
• 2
• 3
• 4

Multiple Choice

What number indicates the nucleus?

• 1
• 2
• 3
• 4

Multiple Choice

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

Multiple Choice

This particle determines what element you have - the elements identity.

• electron
• proton
• neutron
• valence shell

Multiple Choice

Describe an Electron Cloud?

• the mist outside of an atom
• home of the protons
• where electrons are located
• nucleus

Multiple Choice

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

Multiple Choice

The subatomic particle that determines the identity of an element.

• neutron
• proton
• electron
• outer shell

Multiple Choice

How many Electrons are shown in the atom pictured? 

• 11
• 12
• 22
• 23

Multiple Choice

How many neutrons does this atom have?

• 11
• 12
• 22
• 23