Atomic Structure Flashcards
1
Q
What is an atom?
A
An atom is the smallest particle of an element which still retains the properties of that element
2
Q
Give the location, relative mass and charge of a proton, neutron and electron
A
Proton - nucleus - 1 AMU - +1 unit
Neutron - nucleus - 1 AMU - 0 unit
Electron - outside the nucleus - 1/1840 AMU - -1 unit
3
Q
What is the atomic number?
A
The atomic number of an atom is the number of protons in the nucleus of that atom
4
Q
What is the mass number?
A
The mass number is the number of protons and number of neutrons in an atom
