Chemistry Flashcards
1
Q
Atomic number
A
The number of protons in the nucleus of an atom
2
Q
Mass number
A
The number of protons and neutrons in the nucleus of an atom
3
Q
Isotopes
A
Atoms of an element which have the same number of protons but different number of neutrons
4
Q
Cation
A
Positive ion
5
Q
Anion
A
Negative ion
6
Q
Element
A
A substance that has only one type of atom and cannot be broken down into simpler substances
7
Q
Atomic number
A
The number of protons in the nucleus of an atom
