periodic table Flashcards
periods
left to right
group
up to bottom
Alkaline metals
-soft
-low density
-low melting points
-reacts vigorously with water, oxygen and g7 elements
alkaline metals as you go down the group
-becomes more reactive
-melting and boiling point decreases
-increase in density
Halogens
non-mettalic elements found in group 7 of the periodic table
Diatomic molecules
a molecule made up of 2 atoms bonded together
halogens as you go down the group
-melting point and boiling point decreases
-reactivity decreases
-increase in density
why is there a decrease in reactivity as you go down the group
because as you go down the group ,the outermost shell gets further and further away from the nucleus
displacement reaction
when a more reactive element displaces a least reactive one
Noble gases
elements found in group 8 of the periodic table
inert
one that is not generally reactive
noble gases as you go down the group
-boiling point increases as you go down the group
formula of iron pyrites
FeS2
transition element properties
-hard and strong
-high melting and boiling point
-high density
-much less reactive than group 1
2 properties of transition metal that are not properties of all
-good conductor of electricity
-good conductor of heat
how do metals and non metals form ionic bond
when atoms of a metallic element give up electrons to atoms of a nonmetallic element.
metal
left side of the table
non-metal
right side of table
monoatomic
containing a single atom
