Atoms
Dalton's Atomic Theory
Particles
Models
Atoms ( Hard Mode )
100

This is the smallest particle that still can be considered an element

ATOM


100
The English chemist that inferred that atoms have certain characteristics.

John Dalton 

100

Positively Charged Particles

Protons

100

Name 5 models of atoms.

Dalton, Thomson, Rutherford, Bohr, Cloud

100

The sum of the protons and neutrons

Mass number

200

Name the parts of an atom 

Protons, Neutrons, Electrons, and Nucleus
200

TRUE OR FALSE: carbon atom has the same mass as an oxygen atom.

FALSE; Atoms of different elements have different masses

200

Negatively Charged particles

Electrons


200

This model explained that atoms were smooth, hard balls

Dalton's Model

200
A proton has a charge of :

+1

300

The small region at the center of an atom

NUCLEUS

300

All elements consist of atoms that cannot be ________________.

DIVIDED

300

A particle that has no electric charge

Neutron

300

According to this model, an atom was mostly open space, with a few particles that deflected strongly. 

Rutherford's Model

300

What would be the mass number of a carbon atom that has 9 protons and 4 neutrons?

The mass number would be 13 ( 9 + 4 = 13 )

400

Which particles live inside the nucleus?

Protons and Neutrons

400

When atoms of more than one element combine in a specific ratio.

COMPOUND

400

Atoms with the same number of protons and different numbers of neutrons

Isotopes

400
This model described an atom that had electrons scattered throughout a ball of positive charge.

Thomson's Model

400

Unit of measurement of an atom

Atomic Mass Units (AMU)

500

The number of protons in the nucleus of an atom

ATOMIC NUMBER

500
TRUE OR FALSE: An atom of one atom can be changed into an atom of a different element by a chemical reaction.

FALSE; An atom of one element cannot be changed into an atom of a different element by a chemical reaction. 

500

An electron's movement is related to it's

Energy level

500
This model explains that electrons move rapidly in different directions around the nucleus

Cloud Model

500

How many neutrons would a Carbon atom have if it's mass number is 15 and it has 7 protons 

The Carbon atom would have 8 neutrons
 ( 15 - 7 = 8 )