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Worksheets3.2.1 Periodicity
Total questions: 11
Worksheet time: 6mins
Which is the correct classification for the element yttrium (Y)?
s block
p block
d block
f block
Which element is in the f-block of the Periodic Table?
Palladium
Phosphorus
Platinum
Plutonium
Which element is in the d-block of the Periodic Table?
Selenium
Antimony
Tantalum
Lead
The diagram shows how a property of Period 3 elements varies across the period.
What is the property?
Atomic radius
Electronegativity
First ionisation energy
Melting point
Which element has the highest first ionisation energy?
Aluminium
Phosphorus
Silicon
Sulfur
Which of these Period 3 elements has the highest melting point?
Aluminium
Phosphorus
Sodium
Sulfur
Which is the correct order of melting points of these Period 3 elements?
phosphorus > sulfur > chlorine > argon
argon > chlorine > phosphorus > sulfur
sulfur > phosphorus > chlorine > argon
chlorine > phosphorus > sulfur > argon
Which of the following is a correct statement about the trend in atomic radius across Period 3 of the Periodic Table?
radius increases because the atoms have more electrons
radius decreases because nuclear charge increases
radius increases because shielding (screening) increases
radius decreases because shielding (screening) decreases
Which elements are shown in increasing order of the stated property?
Atomic radius: phosphorus, sulfur, chlorine.
First ionisation energy: sodium, magnesium, aluminium.
Electronegativity: sulfur, phosphorus, silicon.
Melting point: argon, chlorine, sulfur.
Which of these elements has the highest second ionisation energy?
Na
Mg
Ne
Ar
Which one of the following statements is correct?
The first ionisation energies of the elements in Period 3 show a general decrease from sodium to chlorine.
The electronegativities of Group 2 elements decrease from magnesium to barium.
The strength of the intermolecular forces increases from hydrogen fluoride to hydrogen chloride.
The ability of a halide ion to act as a reducing agent decreases from fluoride to iodide.
