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Worksheetsheavy metals
Total questions: 5
Worksheet time: 50secs
Name
Class
Date
1.
Which metals are called heavy metals
a)
with densities of 4.5 g/cm3
b)
elements that are located in VII A group
c)
elements with an atomic mass greater than 50
d)
alkali metals
2.
Which toxic elements do you know?
a)
Na,Cu,Al,Pb
b)
Au,Hg,Fe,K
c)
Pb,Zn,Hg,Cd
d)
Ca,Mg,Sn,Rh
3.
Сынап қандай табиғи қосылыстардың құрамында болады?
a)
киноварь (HgS)
b)
Каломель (Hq2Cl2)
c)
С2H5HgCl
d)
екі йодты сынап(HqІ2)
4.
The only metal that is liquid at room temperature
a)
Fe
b)
Au
c)
Hg
d)
Pb
5.
As they call an alloy of metal with mercury?
a)
corundum
b)
thiocyanate
c)
impurities
d)
amalgam
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