C1.2: Atomic Structure Flashcards
When did John Dalton produce his model of the atomic model?
1803
When did JJ Thomson produce his model of the atomic model?
1897
When did Ernest Rutherford produce his model of the atomic model?
1911
When did Niels Bohr produce his model of the atomic model?
1913
What model did John Dalton produce?
Solid sphere model
What model did JJ Thomson produce?
Plum Pudding Model
What model did Ernest Rutherford produce?
Alpha Scattering Experiment - Nuclear Model
What model did Niels Bohr produce?
Planetary Model - Electronic orbit
What was the solid sphere model?
Proposed all atoms were made of tiny indivisible particles called atom
Every element was made up of the same atoms, different from other elements
What was the plum pudding model?
Proposed atoms weren’t indivisble
Positively charged matter with electrons embedded inside it
What was the nuclear model?
Most of the atom is an empty space
Most mass is in the nucleus
Nucleus is positive charged
What was the planetary model?
Electrons move in orbits around nucleus in electron shells
What is the base 10 for tera?
10^12
What is the base 10 for giga?
10^9
What is the base 10 for mega?
10^6
What is the base 10 for kilo?
10^3
What is the base 10 for milli?
10^-3
What is the base 10 for micro?
10^-6
What is the base 10 for nano?
10^-9
What is the base 10 for pico?
10^-12
What is the base 10 for femto?
10^-15
What is the size of an atom in metres?
1 x 10^-10 metres
What is the size of the nucleus of an atom in metres?
1 x 10^-15 metres
What are the subatomic particles of an atom?
Neutron
Proton
Electron
What is the relative mass of the electron?
0.0005
What is the relative mass of the proton?
1
What is the relative mass of the neutron?
1
What is the charge of the electron?
-1
What is the charge of the proton?
+1
What is the charge of the neutron?
Neutral
What is the charge of the nucleus?
Positive
What does the group number of an atom tell you?
The number of electrons in the outer shell
What does the period number of an atom tell you?
The number of electron shells of an element
What does the atomic number of an atom tell you?
Number of protons and electrons
What does the mass number of an atom tell you?
Protons + neutrons
How do we know which number is the mass number?
The bigger one is always the mass number
What is an ion?
An atom with a charge, either by gaining or losing electrons
When do protons get transferred?
Never. Only electrons transfer
What are isotopes?
Same number of protons but with a different number of neutrons
