Atomic Structure Exam

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

An electron has a _____ charge.

• negative
• positive
• neutral

Which particles make up the nucleus of an atom?

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

The subatomic particles in green are...

• Protons
• Neutrons
• Electrons

All matter is made up of: 

• energy 
• atoms 
• electrons 
• compounds 

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass
• False - They do not have about the same mass

Referring to the table, what is the relative mass of a proton?

• 10
• 1
• 0.1
• 0.01

What charge does the nucleus have and why?

• positive - the neutrons do not have a charge
• positive - the neutrons and protons are positively charged particles
• neutral - the neutral charge dominates the positive charge
• neutral - electrons cancel out the positive charge of the atom

At what part of the atom is the arrow pointing?

• proton

• neutron

• electron

• nucleus