The Table
The most stable group on the periodic table of elements.
Nobel Gasses
Position on the Periodic table?
Group 2
Mostly used in batteries
Lithium
What group represents the halogens on the periodic table?
Group 17
Position of the noble gases on the periodic table.
The furthest right column on the periodic table.
Group 18.
The group with 7 valence electrons.
Halogens
Name 3 elements in this group
Beryllium, Magnesium, Calcium, Strontium, Barium, Radium
We need in table salt
Sodium
Name 3 halogens.
Name three noble gases.
Helium, Neon, Argon, Krypton, Xenon, Radon.
Hard, shiny, ductile, and malleable. Located in the centre of the table.
Transition Metals
Physical properties of Alkaline Earth metals
shiny, silvery white
Can kill a person if injected into blood
Potassium
The halogens are known for having low ______ and ______ points
melting and boiling
Physical properties of noble gases.
Colourless, odourless, tasteless.
Good semi-conductors, located to the right of the transition metals.
Metalloids
What group do Alkaline earth metals react with?
Halogens
Has the smallest ionization energy in the periodic table (non-radioactive)
Cesium
What halogen is a liquid in its normal state?
The reason why noble gases are chemically inert.
They have a full outermost shell.
The number of elements on the periodic table of elements.
118
Why are alkaline earth metals reactive?
They readily lose 2 electrons to form a cation with a 2+ charge.
Two ions that function in nerve systems
Potassium and sodium
The halogens are a very reactive group. Why is this?
They are 1 electron away from a favorable full valence shell.
The gas used in balloons to make them float
Helium