Atoms Molecules Elements Compounds

All matter is made of 

• energy 
• atoms 
• air
• chemistry

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• atoms
• neutrons 
• protons 

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

• nucleus 
• electron cloud
• core 
• center 

Neutrons are

• negative
• positive
• neutral
• cows

Electrons are

• negative and in the nucleus
• positive and at the edge of the atom
• not in an atom
• negative and at the edge of the atom

Most of the atom is filled with

• electrons
• empty space
• the nucleus
• protons

Which of the following is NOT matter

• air
• heat
• steam
• cow

Element is a

• pure substance
• compound
• mixture
• molecule

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

which one only has one type of atom In it.

• Element
• compound