Atoms Review

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Which of the following determines the identity of an element?

• atomic number 
• mass number
• atomic mass
• overall charge

Two atoms of the same element but with different mass numbers are called________

• electrons
• isotopes
• variables
• electron cloud

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons