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WorksheetsC9 The Periodic Table
Total questions: 42
Worksheet time: 21mins
Which group contains soft and highly reactive elements?
1
2
7
0
How does density change down group 1?
Decreases
Increases
Stays the same
How are group 7 molecules arranged?
Giant molecular
Small ionic
Diatomic
Monatomic
Which of the following are properties of transition metals? Select as many as appropriate.
High densities
High melting points
Form coloured compounds
Act as catalysts
Have variable oxidation states
Which noble gas is used for lightbulbs?
Helium
Neon
Argon
Krypton
Xenon
Which group typically consists of diatomic molecules?
1
2
6
7
How does reactivity change down group 7?
Increase
Decrease
Stay the same
Which element has 2 electron shells and 3 valence electrons
What determines the order of elements on today's periodic table?
increasing atomic mass
decreasing atomic mass
increasing atomic number
decreasing atomic number
Where are most metals on the periodic table?
on the left side only
on the right side only
in the middle only
on the left side and in the middle
The table above lists some information about certain elements in group 17. Which statement describes what happens to these elements as atomic number increases?
Both melting point and boiling point decrease.
Melting point increases and boiling point decreases.
Melting point decreases and boiling point increases.
Both melting point and boiling point increase.
What is one similarity among elements in a group?
atomic mass
atomic weight
chemical properties
practical uses
Atoms of elements that are in the same group have the same number of
protons.
neutrons.
valence electrons.
protons and neutrons.
Which group is very stable due to the fact that they have a full outermost energy level?
alkali metals
halogens
alkaline-earth metals
noble gases
a row on the Periodic Table of Elements
family
period
row
isotope
Which color on the image of the periodic table corresponds with the transition metals.
red
black
blue
orange
Why are halogens so reactive?
They want to get rid of their only valance electron
They only need one more electron
They are non reactive, they have a full shell
Which noble gas is used for super-cooling and in balloons?
Helium
Neon
Argon
Krypton
Xenon
Which "Halogen" can able to displace Chlorine in Sodium Chloride?
Flourine
Bromine
Iodine
Astatine
Which equation shows the displacement of bromine by chlorine?
2NaBr + Cl2 → 2NaCl + Br-
NaBr + Cl- → NaCl + Br2
2NaBr + Cl2 → 2NaCl + Br2
NaBr + 2Cl- → NaCl + 2Br-
What is the best prediction about the physical state and color of Astatine?
Dark black solid
Dark reddish brown liquid
Light yellow gas
Light green gas
Which of the following reactions does not occurs?
Potassium bromide solution with chlorine water
Potassium iodide solution with bromine water
Potassium chloride with bromine water
Potassium iodide solution with chlorine water
What can be observe when bromine water is added into potassium iodide solution?
Yellow solution formed.
Brown solution formed.
Purple solution formed.
Colourless solution formed.
Which of the "Halogens" is found in liquid state at room temperature?
Flourine
Astatine
Iodine
Bromine
A displacement reaction involves...
a solution turning brown or yellow.
a less reactive element taking the place of a more reactive element.
a dislocated hip.
a more reactive element taking the place of a less reactive element.
The colour of halogens gets darker as we go down the group from Cl to At
True
False
