S 2.1 Structure of an Atom EOL

Label the correct arrow that is pointing to the protons, neutrons, electrons and the nucleus.

a

b

c

d

electron

nucleus

neutron

proton

Tags

NGSS.MS-PS1-1

The protons are located in​ (a)  

• in the nucleus
• outside the nucleus
• atom

The neutrons are located in​ (a)  

• in the nucleus
• outside the nucleus
• atom

The electrons are ​ (a)   ​

• orbiting outside the nucleus
• in the nucleus
• atom

Tags

NGSS.MS-PS1-1

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

Match the subatomic particle in the correct location.

Groups:

(a) nucleus

,

(b) orbiting the nucleus

• neutron

• proton

• electron

Tags

NGSS.MS-PS1-1

Match the subatomic particles to the correct charge

• positive

• electron

• no charge

• neutron

• negative

• proton

A proton has a ___________ charge.

• positive
• negative
• neutral

Tags

NGSS.MS-PS1-1

What charge does a neutron have?

• negative

• positive

• no charge

Which part of the atom has a negative charge?

• proton

• electron

• neutron

• lepton