Lesson 2 Flashcards
1
Q
Atoms are made up of several kinds of particles called
A
protons
neutrons
electrons
2
Q
Nucleus
A
tight ball of particles in the center of the atom
3
Q
Atoms that are not electrically balanced are called
A
ions
4
Q
Positively charged ions are called
A
cations
5
Q
Negatively charged ions are called
A
anions
6
Q
Atomic mass
A
measures how large an atom is
7
Q
Atomic mass is measured in
A
atomic mass units (amu)
8
Q
How do you calculate the atomic mass
A
you add the protons and the neutrons together
