Atoms

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

• 14
• 7
• 15
• 18

Tags

NGSS.HS-PS1-1

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

Tags

NGSS.MS-PS1-1

All matter is made of what?

• energy

• atoms

• electrons

• compounds

The word “atom” comes from the Greek “atomos."  What does "atomos" translate to?

• Important
• Atmosphere
• Indivisible
• Cuttable

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

An atom with atomic number 6 would have how many protons?

• 6

• 12

• 3

• cannot be determined

Which scientist developed the plum pudding/chocolate chip cookie model?

• Dalton

• Thompson

• Rutherford

• Democritus

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

• negatrons 
• electrons 
• neutrons 
• protons 

An atom's overall charge is

• positive

• depends on its mood

• neutral

• negative