1.1 Atomic Structure Flashcards
1
Q
What is an Atom
A
An atom is the simplest particle of an element that can exist on its own in a stable environment
2
Q
What is the atomic number
A
The number of protons in an atom
3
Q
What is the mass number
A
The number of protons and neutrons in an atom
4
Q
Why do atoms have no charge
A
They have equal number of protons and electrons
5
Q
How can an atom become more stable
A
Gain or lose electrons
6
Q
What is an Ion
A
A charged particle formed when an atom gains or loses electrons
7
Q
How to work out relative atomic mass
A
Ar = (mass number x abundance) + (mass number x abundance)
———————————————————————————
total abundance
8
Q
A
