Moles And Such

Question 0

How do thou calculate protons

Answer 0

Proton number on pt

Question 1

How many atoms in ANY MOLE

Answer 1

6.02x10^23

Question 2

How do you calculate electrons

Answer 2

Same number as protons

Question 3

How do you calculate neutrons

Answer 3

Mass minus protons

Question 4

What atomic particle did Thomson discover

Answer 4

Electron

Plumb pudding

Question 5

What atomic particle did Rutherford discover

Answer 5

Proton

Also nucleus

Question 6

What did Chadwick discover

Answer 6

Neutron

Question 7

How do you identify an atom

Answer 7

Number protons

Question 8

Thomson atomic model

Answer 8

Plum putting

Question 9

Bohr model

Answer 9

Nucleus with protons and neutrons and electrons orbiting

Question 10

Dalton model

Answer 10

Sphere

Question 11

Modern model

Answer 11

Cluster of protons and neutrons around nucleus cloud of electrons

Question 12

How do you calulate mass/Amu’s

Answer 12

Add mass together

Question 13

How do you find the mass per atom

Answer 13

Amour of atoms x 6.02 E 23

Question 14

What experiment did Rutherford do

Answer 14

Gold foil

Question 15

Electron charge

Answer 15

0

-1e

Question 16

Proton charge

Answer 16

+1

1p

Question 17

Neutron charge

Answer 17

1

0 n

Question 18

Founder of atomic theory

Answer 18

Democritis

Question 19

Atomic theory

Answer 19

Matter is composed of indivisible particles called atoms

Question 20

Alchemy

Answer 20

Change materials into gold

Question 21

Law of definite proportions

Answer 21

Compound contains same elements in exactly same proportions by mass regardless of size of sample and source of sample

Question 22

Law of conservation of mass

Answer 22

Mass of products=mass of reactants

Question 23

Law of multiple proportions

Answer 23

Mass of one element that combines with fixed mass of another
Different compounds formed
From two different elements

Question 24

Dalton’s atomic theory

Answer 24

Atomic theory: all matter is made of invisible and indivisible atoms
Atoms of different elements differ in their physical and chemical properties
Chemical reactions: combination, seperation, rearrangement
All atoms of a given element are identical in their physical and chemical properties(not true)
Atoms of different elements combine in simples WHOLE NUMBER ratios to fo compounds

Question 25

Subatomic particles

Answer 25

Solid particle

Indivisible

Question 26

Thomsons experiments

Answer 26

Cathode ray tube

Discovered electrons