Chemestry Group Flashcards
What two elements do you draw a line to connect that shows you where metals end and nonmetals start
Boron to radon
what side of the line is metals
left side
what is the right side called
non metals
what are the elements on the line called
semi metals
What color are metals
Silver
what are the expetions to the rule of color for metals
gold and copper
What are non metals souble in
Non-polar substances (except for Si and Co)
is group 8 reactive or unreative
unreactive becuase it is very difficult for them to lose or gain electrons becuase of full outer shell
group eight color
clear gas
Is group eight dense
No
what are group eights metilng and boiling points
very low
transition metals melting points
very high (except mercury)
transtion metals reactivity
less reactive than metals in group one and 2
What do transition metals often act as
cataylsts
what is a displacement reaction
when a more reactive substance replaces a less reactive substance in a compound
what can metals only replace in displacement reactions
other metals
what can non metals only replace in displacement reactions
other non metals
what does group seven naturally exist as
diatonic molecules
which way are groups
verctical
physical properties of group one metals
soft light gray and shiny when cut with knife
what is the density of group one metals
low
what do group one metals reactive with
a basic solution and hydrogen gas
what happens to the melting and boiling points of group one as you go down
they decrease
what happens to the reactivity of group one as you go down
it increases becuase its easier for the outer shell to lose its electron due to how far away it is away from the nucleus
what happens to reactivity in group seven as you go down
they decrease becuase its harder for the atoms to gain the electrons they need becuase of the weaker electrostatic charges caused by distance