Barron's Chemistry Chapter 2

Front 1

Dalton's atomic theory
#1

Back 1

all matter is made up of very small, discrete particles called atoms

Front 2

Dalton's atomic theory
#2

Back 2

All atoms of an element are alike in weight and different from weight of any other kind of atom

Front 3

Dalton's atomic theory
#3

Back 3

Atoms cannot be subdivided, created, or destroyed

Front 4

Dalton's atomic theory
#4

Back 4

Atoms of different elements combine in simple whole-numbered ratios to form chemical compounds

Front 5

Dalton's atomic theory
#5

Back 5

In chemical reactions, atoms are combined, separated, or rearranged

Front 6

electrons

Back 6

very small negatively charged particles
define the volume of the atom

Front 7

nucleus

Back 7

most of the mass of the atome is located here and it is positively charged

Front 8

neutron

Back 8

the neutral partical making up half of the mass of the nucleus

Front 9

proton

Back 9

the other half of the nucleus that is positively charged

Front 10

atomic number

Back 10

the number of protons in the nucleus of an atom