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The periodic table
From higher to lower melting point, choose the right series
Elements in a group:
The periodic table
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periodic table
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1
Elements in a group:
have the same number of electrons in the outer shell
have similar colour
have similar chemical and physical properties
have the same physical properties
2
From higher to lower melting point, choose the right series
beryllium, magnesium, calcium, strontium
barium, strontium, calcium, magnesium
beryllium, calcium, magnesium, strontium
barium, calcium, strontium, magnesium
3
Which element can work as a catalyst?
chlorine
potassium
manganese
oxygen
4
Elements in a period:
Have the same number of electron shells
Form ions with the same charge
have the same chemical and physical properties
have the same number of electron shells
5
Which group has seven electrons in its outer shell?
Alkaline metals
Group VI
Halogens
Alkaline earth metals
6
What is the right order from more reactive to less reactive?
rubidium, caesium, sodium, potassium
caesium, rubidium, potassium, sodium
sodium, potassium, rubidium, caesium
potassium, lithium, caesium, rubidium
7
Which elements form molecules with the formula X
2
?
Alkaline metals
Group II
Transition metals
Halogens
8
Which elements form coloured compounds?
Metals
Transition metals
Non metals
Noble gases
9
Which element is in group II and period 3?
aluminium
calcium
beryllium
magnesium
10
Which two elements would react more violently?
Francium and fluorine
Francium and astatine
Lithium and fluorine
Lithium and astatine
11
Which group elements gain one electron to become a noble gas?
Alkaline earth metals
Group I
Alkaline metals
Group VII
12
From softer to harder, which is the right series?
sodium, potassium, rubidium, caesium
caesium, rubidium, potassium, sodium
barium, strontium, calcium, magnesium
lithium, sodium, rubidium, caesium
