Atomic Structure

The smallest particle of an element.

• Element

• Molecule

• Atom

Tags

NGSS.MS-PS1-1

Value representing the number of protons in an element

• Atomic Mass

• Mass Number

• Valence Electrons

• Atomic Number

How many neutrons does a sodium atom have? (Use the image to help you)

• 23

• 11

• 12

• 34

Tags

NGSS.MS-PS1-1

________________ have a positive charge, ___________________ have NO charge, and _____________________ have a negative charge.

• Protons, Electrons, Neutrons

• Neutrons, Electrons, Protons

• Protons, Neutrons, Electrons

• Electrons, Neutrons, Protons

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass

• False - They do not have about the same mass

Tags

NGSS.MS-PS1-1

The only element with no neutrons in its nucleus.

• Oxygen

• Helium 

• Hydrogen

• Lithium

Tags

NGSS.MS-PS1-1

What is one way Neutrons are different from electrons?

• they both are negative

• neutrons have no charge, while electrons have a negative charge

• Both are in the nucleus( center of atom)

• Electrons are inside nucleus and neutrons are outside the nucleus.

Tags

NGSS.MS-PS1-1

The periodic table is in order by the

• Mass number

• Neutron number

• Atomic number

• APE MAN Number

The smallest subatomic particle is the

• proton

• neutron

• electron

• decepticon

The smallest particle of an element that shows all the properties of that element.

• Subatomic Particles

• Atom

• Quarks

• Gluons