Atoms and Molecules: Part 1

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

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

• nucleus 
• electron cloud
• core 
• center 

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

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

• negatrons 
• electrons 
• neutrons 
• protons 

True or False? Neutrons have a negative charge

• True
• False

_______ are elements found in Group 18. They make up the atmosphere.

• Radioactive elements
• Noble Gases
• Rare earth elements

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

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

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

Where are electrons of an atom found?

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