Chapter 2 Flashcards
Atoms, Ions, and Molecules
1
Q
Neutron
A
Atomic mass-1
Charge-0
in nucleus
2
Q
Proton
A
Atomic mass-1
Charge- 1+
in nucleus
3
Q
Electron
A
Atomic mass- 0
Charge - 1-
outside nucleus
4
Q
Isotopes
A
forms of the same element that contain the same amount of protons but different number of neutrons (atomic mass differs)
5
Q
Demetri Mendeleev
A
1869: developed recognizable periodic table
6
Q
Law of constant composition
A
7
Q
A
