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Question 1

describe group 1 elements in THREE
WAYS

Answer 1

-they are very reactive

-low density – lithium, sodium and potassium

-very soft

Question 2

why does the reactivity increase in group 1 elements

Answer 2

the reactivity increases as you go down the group because the atoms become larger

Question 3

what safety procautions should be taken while dealing w alkalis

Answer 3

.use tweezers when lifting alkali metals

.use a safety screen

.wear safety glasses and gloves

.use small pieces of metal

Question 4

describe group 7 the halogens

Answer 4

.are non-metals

.are poisonous

are coloured

have low melting points

Question 5

are the halogens more or less reactive when you go down the group??

Answer 5

less reactive 🤓

Question 6

give an examplar of the reactivity in group 1 elements

Answer 6

.lithium, at the top of the group, fizzes with water
.francium, at the bottom of the group, reacts explosively with water