Atoms and Molecules REVIEW!

Which statement about the atomic nucleus is correct?

• The nucleus is made of protons and neutrons and has a negative charge
• The nucleus is made of protons and neutrons and has a positive charge
• The nucleus is made of electrons and has a positive charge
• The nucleus is made of electrons and has a negative charge

Small positively charged particles that are found in the nucleus of an atom

• neutron
• ion
• proton
• electron

A tiny, negatively charged particle that moves around the outside of the nucleus of an atom

• ion
• proton
• electron
• neutron

An element is composed of how many types of atoms?

• 5
• 3
• 1

All matter is made of what?

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

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

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

Tags

NGSS.MS-PS1-1

Anything that has mass and takes up space is called

• air
• water
• matter
• stuff

Which subatomic particle has a neutral charge?

• Proton
• Neutron
• Electron

Which is the chemical formula  for water?  

• H₂O
• H₂O₂
• HO₂
• HO

Which is bigger, an atom or a molecule

• atom
• molecule