1.1.4, 1.1.5 , 1.1.6, 1.1.7 (Relative Charge Of Subatomic Particles) (Size And Mass If Atoms) (Relative Atomic Mass) (Electron Configuration) Flashcards
Relative charge of protons
+1
Relative charge of electrons
-1
Relative charge of neutrons
0
Atomic number on periodic table
The amount of protons
Mass number on periodic table
Amount of protons and neutrons
Radius of an atom
1 × 10 ‐10 m
Size of atom’s nucleus
1 × 10 -14 m
Relative mass of a proton
1
Relative mass of a neutron
1
Relative mass of an electron
0.0005
Isotopes
An atom of an element with the same number of protons in the nucleus but different number of neutrons
Relative mass equation
(Relative mass × % abundance) ÷ 100
(For each isotope)
Electronic configuration (2p)
-Shows how electrons are arranged in shells
- Electrons occupy the lowest energy first
Maximum number of electrons in shells
1st = 2
2nd = 8
3rd = 8