Atomic Structure

All elements are composed of 

• molecules
• atoms
• neutrons
• compounds

Tags

NGSS.MS-PS1-1

Components of atoms

• quarks
• isotpoes
• subatomic particles
• ions

The dense center region of an atom

• electron cloud
• core
• nucleus
• centrino

Tags

NGSS.MS-PS1-1

Subatomic particle that determines the identity of the atom

• proton
• nucleus
• electron
• neutron

Tags

NGSS.MS-PS1-1

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

• electrons
• neutrons
• isotopes
• protons

The number of protons is equal to the 

• atomic mass
• atomic number
• atomic structure
• atomic link

Tags

NGSS.MS-PS1-1

Where are protons located in an atom?

• nucleus
• electron cloud
• neutron
• who knows?

Tags

NGSS.MS-PS1-1

Where are neutrons located within an atom?

• nucleus
• electron cloud
• neutron
• who knows?

Tags

NGSS.MS-PS1-1

Where are electrons located in an atom?

• nucleus
• electron cloud
• neutron
• who knows?

Tags

NGSS.MS-PS1-1

The atomic mass of a single atom  is

• the sum of the protons and neutrons in the atom.
• twice the number of protons in one atom of the element.
• a ratio based on the mass of a carbon-12 atom.
• a weighted average of the masses of the element’s isotopes.