The Periodic Table And Bohr Model Flashcards
Three Major Groups from the periodic table
Metal non metal and metalloids
Atomic Number
Represents the amount of protons and is located in the top left
Atomic Mass/Mass number
The mass of the atom and you subtract it from the atomic number to get the amount of neutrons and don’t forget to round
Ion charge
The electric charge that forms on an atom when it gains it loses electrons
What kind of particle has to be removed for the atom to become positive
Electrons
What kind of particle has to be added to an atom so that the atom becomes negative
Electrons
What kind of ions on left side form?
Positive
What kind of ions form on the right side
Negative
What are the four families in the periodic table?
Halogens Noble Gases Alkaline earth metals and alkaline metals
Where are alkaline metals located?
1st Column
Where are alkaline earth metals located?
2nd column
Where are noble gases located?
18th column
Where are halogens located
17th column
Valence
The amount of electrons in the outermost shell
How many energy shells are there?
4
How many electrons can each shell hold
1st - 2
2nd - 8
3rd - 8
4th - 18
2+8+8 = 18
If 2 electrons are gained what is the ion formed?
(Element Symbol) -2
Alkaline metal
Highly reactive metals with oxygen and water and have low melting points
Alkaline earth metals
Less reactive than alkali metals cut will burn in air if heated also react somewhat with water
Halogens
Reactive non metals that form strongly acidic compounds with hydrogen
Noble gases
Unreactive
What does AMU stand for?
Atomic mass unit
Metals
State at room temp
Appearance
Conductivity
Malleability And Ductility
Solid except for mercury
Shiny
Good conductors if heat and electricity
Malleable/ductile
Non metals
Some gases some solids only bromine is a liquid
Not shiny
Poor conductors if heat/electricity
Brittle not ductile