Mod 4 Lesson 3 Flashcards
1
Q
Atomic number
A
the number of protons in an atom; abbreviated as Z
2
Q
Chemical symbol
A
a letter abbreviation for each element
3
Q
Ion
A
an atom that is not neutrally charged and contains an unequal number of protons and electrons.
4
Q
Mass number
A
the sum of the number of neutrons and protons in an atom; abbreviated as A
