Atoms Flashcards
smallest representative piece of an element that behave as that element
Atom
___ of same element have identical chemical properties
atoms
2 parts of an atom
Nucleus, Electron Cloud/Shell
The nucleus of an atom contains
Protons and Neutrons
Mass and Charge of a Proton
+1 charge
Mass = 1
Mass and Charge of a Neutron
0 charge
Mass = 1
Mass and Charge of a Electron
-1 charge
Mass = 1/2000
It is the total number of proton and electron
Atomic Number
Mass of Protons and Neutrons
Atomic Mass
___ energy is found near the nucleus
lowest
describes how electrons are distributed within an atom’s energy levels and subshells.
electron arrangement
it is the outermost energy level
Valence Electrons
It determines the element’s chemical behavior
Valence Electron
Elements in the same _____ have same valence electrons
Vertical Group
Its the average mass of all isotopes
Relative Atomic Mass (RAM)