Text 2

Question 1

Smallest particles of a element that retains its unique properties

Answer 1

Atoms

Question 2

He thought this : atoms are indestructible and indivisible

Answer 2

Democratic

Question 3

Dalton atomic theory 1

Answer 3

All elements are composed by tiny indivisible particles called atoms

Question 4

Dalton 2

Answer 4

Atoms the same elements are the same and atoms of different elements are different

Question 5

Are atoms of the same elements identical?

Answer 5

No, atoms are little different from each other

Question 6

Dalton 3

Answer 6

Atoms of a different element combine in whole number ratios to form compounds ( example h20)

Question 7

Dalton 4

Answer 7

When a chemicals reactions occur when atoms are separated and reconnect in different combinations

2) atoms of 1 elements never change of a atom in another element in a chemical reaction

Question 8

Is dalton 4th theory true ?

Answer 8

They

Question 9

Jj Tomson discovered the _____ in 1897

Answer 9

Electrons

Question 10

Electrons has the mass of

Answer 10

1/1840 the mass of Hydrogen atom

Question 11

Who discover protons in 1886

Answer 11

Mass of pt = 1 hydrogen atom

Question 12

Discover neutrons in 1932

Answer 12

James Chadwick

Question 13

What’s the point of a neutron

Answer 13

Glue to hold the pt in a nucleus

Question 14

Neutrons mass

Answer 14

Same mass of a proton

Question 15

Discovered that atoms have a nucleus

Answer 15

Ernest Rutherford