H Chem Unit 1 Review

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

• 14

• 7

• 15

• 18

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 

An atoms overall charge is _____.

• Positive 
• Depends on its mood 
• Neutral 
• Negative 

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

Where are electrons of an atom found?

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

Tags

NGSS.MS-PS1-1

Which statement best describes an electron?

• Smaller mass than a proton and a negative charge
• Smaller mass than a proton and a positive charge
• Greater mass than a proton and a negative charge
• Greater mass than a proton and a positive charge

Tags

NGSS.MS-PS2-3

What does the 1.00794 stand for?

• Hydrogen

• atomic number

• atomic mass

• mass number