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Science week 1
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Karthik N
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Cards (10)
Explain why elements in the same group have similar chemical properties
Ans :
Same number of outer electrons
Describe the trend in reactivity as u go down group 7
Ans :
it
decreases
Where are the transition metals located
Ans :
Between
group 2
and
group 3
Why are gold and silver used in jewellery
Ans :
Because they don't
react
with
water
and oxygen
Why is copper used in electrical wiring
Ans :
good
electrical conductor
What is the name of the allow made from iron and carbon
Ans :
Steel
How does this alloy compare with iron
Ans:
stronger
and
harder
Iron reacts with water to for which product
Ans :
Rust
Name the two types of ions formed by copper
Ans :
Cu+
and
Cu2+
State a physical property of a transition metal
Ans :
conducts electricity
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