Sub Atomic Particles

How many protons are in Sodium?

• 11

• 22

• 12

• 33

Tags

NGSS.MS-PS1-1

How many electrons are in Aluminium?

• 40

• 27

• 13

• 14

Tags

NGSS.MS-PS1-1

How many neutrons are in Magnesium?

• 36

• 12

• 24

• 6

Tags

NGSS.MS-PS1-1

 What particles are found in the nucleus of an atom? 

• protons and neutrons    

• neutrons and electrons  

• protons and electrons

• ions and neutrons

Tags

NGSS.MS-PS1-1

Which subatomic particle has the smallest mass?

• proton    

• electron       

• neutron         

• ion

Which subatomic particle has a charge of zero?

• electron         

• neutron           

•  ion       

• proton

The dense, positively charged mass located in the center of the atom.

• nucleus
• proton
• isotope
• molecule

Atoms of the same element must always have the same number of _________

• electrons
• neutrons
• isotopes
• protons

The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.

• mass number
• atomic number 
• atomic weuight
• isotope weight

Tags

NGSS.MS-PS1-1

Two atoms of the same element but with different mass numbers are called________

• electrons
• isotopes
• variables
• electron cloud