Periodic Table 1
How many ELECTRONS can the first ring/orbital shell hold?
2
What is Mass Number?
Number of Protons & Neutrons combined
How is the Periodic Table organised?
An unknown Element has the arrangement as the following.
85
E (Unknown Element)
210
How many Neutrons does it have?
125
What is the element with the Atomic Number of 74?
Tungsten
What particles surround the nucleus?
Electrons
Which 2 elements are liquids at room temperature?
Mercury & Bromine
Neon
What is a Mixture?
Where 2 or more elements are combined.
Helium
What are the names of the 4 main classifications on the Periodic Table?
Metals
Non-metals
Metalloids
Synthetics (Man-made)
What are the 3 parts of the atom?
Proton
Neutron
Electron
What is Na?
Sodium
What is the least reactive family (group) on the Periodic Table?
Noble Gases
Group 18
Name 3 physical properties of metals
Luster (shiny)
Malleability (able to bend)
Ductibility
Good Conductors
High Density
High Melting Point
What is the smallest sub-atomic particle?
Electrons
Which sub atomic particle never changes?
Protons
What is K?
Potassium
What is the most reactive family (group) on the Periodic Table?
Alkaline Metals
Group 1
Name 3 physical properties of Non-metals
Luster (Dull)
Malleability (Brittle)
Not ductile
Good Insulators
Low Density
Low Melting Point
How many elements have been named?
118
On a Periodic Table, what do Rows represent?
How many rings/Shells an atom has
Why is the Atomic Mass NOT a whole number?
It is an average of all known isotopes of that element
Draw the Bohr model for Oxygen
on Board
Draw the Lewis model for Oxygen
on board