Topic 1 ATOMIC STRUCTURE Flashcards
Who made the plum pudding model
JJ Thompson
What was Thompson theory of the atom
He suggested the atom was a positive sphere with negative electrons embedded with it
Who discovered the neutron
Chadwick
What is the relative charge and mass of the proton
Relative charge = +1
Relative mass = 1
What is the relative charge and mass of neutron
Relative charge = 0
Relative mass = 1
What is the relative mass and charge of electron
Relative charge = -1
Relative mass = 1/1840
What is the atomic number
The number of protons in a nucleus of an atom
What is the mass number
The number of protons and neutrons in an atom
What is an isotope
Isotopes are an atom of an element with the same atomic number but a different mass number meaning there are a different number of neutrons
How do you calculate the relative atomic mass
(Mass number x abundance) + (mass number x abundance) divided by total abundance
What is an ion
An ion is a charged particle formed when an atom gains or loses electrons.
What is a molecular ion
A charged particle containing more than one atom
Do metals lose or gain electrons
Lose - positive ions called cations
Do non metals gain or lose electrons
Gain - negative ions called anions
What is a compound
Two or more elements chemically combined
What is the radius of an atom
0.1 nanometres
What is the size of the nucleus
1/10000th of that of an atom
Equation for metal + acid
Metal + acid > salt + hydrogen
Equation for metal oxide (base) + acid
Metal oxide + acid > salt + water
Equation for acid + alkali( hydroxide)
Acid + alkali > salt + water
Equation for metal carbonate + acid
Metal carbonate + acid > salt + water + carbon dioxide
