Atoms and Bohr Review

A __________ is a subatomic particle with a positive charge.

• proton

• neutron

• electron

• nucleus

Teori atom yang dikemukakan oleh John Dalton

• 
• 
• 
• 
• 

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Tags

NGSS.MS-PS1-1

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

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Tags

NGSS.MS-PS1-1

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

• negatrons 
• electrons 
• neutrons 
• protons 

What does the 1.00794 stand for?

• mass number

• atomic number

• average atomic mass

• number of protons

Tags

NGSS.MS-PS1-1

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

• 14
• 7
• 15
• 18

Tags

NGSS.MS-PS1-1

If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?

• 12 neutrons

• 12 electrons

• 12 protons

• 24 protons and neutrons

Tags

NGSS.MS-PS1-1