group 1+7 metals Flashcards
1
Q
why does reactivity inc group 1
A
as you go further out there is a bigger gap to the nucleus
therefore less strongly attracted to nucleus and therefore loses it quoker
2
Q
group 1 metals feautre
A
soft
form hydroxide plus hydrogen
have mainly colourless compounds which dissolve to produce colourless solutions
3
Q
group 7 colours
A
yellow
green
red brown liquid
grey solid, purple vapour
4
Q
halogens reactivity
A
when halogens react they gain an electron
these take away an electron from something else
however so when they recieve an electron they
