Atomic Structure (mocks) Flashcards
1
Q
Define an isotope
A
Atoms of an element with the same number of protons and electrons but different numbers of neutrons.
2
Q
Define the atomic number
A
The number of protons in an atom.
3
Q
Define the mass number
A
The number of protons and neutrons in an atom.
4
Q
Define relative atomic mass
A
The average mass of an atom compared to 1/12th the mass of carbon-12.
5
Q
Define an atom
A
the smallest part of an element.
6
Q
Define a molecule
A
A molecule is made of a fixed number of atoms covalently bonded together.
