cc6 Flashcards
paper 2
which group of the periodic table is referred as alkali metals
group one
which group on the periodic table is referred to as the halogens
group 7
which group on the periodic table is referred to as the noble gases
group 0
you have two physical properties of alkali metals
soft and have a relatively low melting points
what happens when the alkali metals react with water?
The metal floats around the surface, bubbles of gas are produced, heat is released
what happens to reactivity as you go down in group one?
reactivity increases as you go down group one
what happens to atoms of group 1 elements when they react?
they lose an electron to form 1+ ion
why are the noble gases chemically inert
they have a full outer shell of electrons
give three properties of noble gases
they are inert, have a flammability and have low density
what happens to the boiling points as you go down group 0
boiling points increases as you go down group 0
describe chlorine at room temperature
pale green gas
describe bromine at room temperature
Red brown liquid
describe iodine at room temperature
Grey solid
what happens to the boiling point as you go down group 7
boiling point increases as you go down group 7
what is the chemical test for chlorine?
that blue litmus paper turns, red and then bleaches
